One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains [tex]6.02*10^{23}[/tex] molecules of oxygen but [tex]12.04*10^{23}[/tex] atoms, because each molecule of oxygen contains two oxygen atoms.
The molecular weight of a substance is equal to its mass in one mole. Water, for example, has a mean molecular weight of 18.015 atomic mass units (amu), implying that one mole of water weighs 18.015 grams. In the International System of Units, the mole (symbol mol) is the unit of substance amount (SI). The amount of substance is a measurement of how many elementary entities of a given substance are present in an object or sample. An elementary entity can be an atom, a molecule, an ion, an ion pair, or a subatomic particle such as an electron, depending on the substance.
The mole is widely used in chemistry to express quantities of reactants and products of chemical reactions. The term gram-molecule was formerly used for "mole of molecules", and gram-atom for "mole of atoms".
To learn more about moles of substances, here
https://brainly.com/question/19711232
#SPJ4
Is hydrogen PENToxide (not peroxide) a monoatomic ion or polyatomic ion. Or neither?
Since hydrogen peroxide is both acidic and basic, it serves as both an oxidizing and a reducing agent.
What type of molecule is hydrogen peroxide?Chemically, hydrogen peroxide has the formula H2O2. It is a very light blue liquid that is only a little bit more viscous than water in its pure state.Hydrogen peroxide, or H2O2, is neither monoatomic nor diatomic in nature. Tetraatomic molecules are what it is. indicates that the molecule has two hydrogen atoms and two oxygen atoms, for a total of four atoms. Due to its two hydrogen atoms, the hydrogen gas is a diatomic molecule. H 2 is the subscript in the hydrogen atomic formula.Since hydrogen peroxide is both acidic and basic, it serves as both an oxidizing and a reducing agent. being a monoatomic molecule since it only has one atom.To learn more about hydrogen peroxide refer to:
https://brainly.com/question/25566753
#SPJ1
When did pewter have lead?
At least 2,000 years ago, during the Roman era, pewter was used. The basic ingredients of old pewter were 70% tin and 30% lead. This form of pewter, also referred to as black metal, rapidly lost its lead when exposed to acidic foods.
Pewter stopped using lead when?Older pewters with a higher lead concentration are heavier, tarnish more quickly, and turn a darker shade of silver-grey with time. In 1974, BS5140, which was strengthened in 1994 by the European directive BSEN611, eliminated lead from the composition.
Lead content in antique pewter?Modern pewter is lead-free and safe to use for eating and drinking, however older antique pewter objects may have lead residues.
To know more about pewter visit:-
https://brainly.com/question/29627686
#SPJ4
How many moles of water are produced when 7 moles of hydrogen gas react with 3 moles of oxygen gas?
2H2 + O2 → 2H2O
A) 2 moles of water
B) 3 moles of water
C) 5 moles of water
D) 6 moles of water
Answer: 5 moles of water
Explanation:
took the test
When 7 moles of hydrogen react with 3 moles of oxygen, 6 moles of water are produced according to balanced equation. The correct answer is D) 6 moles of water.
2H₂ + O₂ → 2H₂O
2 moles of hydrogen gas react with 1 mole of oxygen gas to produce 2 moles of water.
hydrogen gas to produce 7moles × [tex]\frac{2 moles water}{2moles hydrogen}[/tex] =7moles water.
oxygen gas to produce 3 moles × [tex]\frac{2 moles of water}{1 mole oxygen}[/tex]=6moles water.
7 moles of hydrogen and 3 moles of oxygen are required to produce 7 moles of water while 6 moles of water are produced by 3 moles of oxygen. Due to the availability of oxygen the law of limiting reactants requires that a smaller amount of product 6 moles be produced.
To know more about moles here
brainly.com/question/34302357
#SPJ2
The active site of chymotrypsin is made up of Choose one:
O Asp 102 and His57 from the A chain and Ser 195 from the C chain.
O Asp 102 and Ser195 from the B chain and His57 from the C chain.
O Asp 102 and His57 from the A chain and Ser195 from the B chain.
O Asp 102 and His57 from the B chain and Ser195 from the C chain.
Enzyme Active Sites and their Reaction Mechanisms, Harry Morrison, 2021 α - The "hydrolytic enzyme" chymotrypsin (EC 3.4.21.1; chymotrypsinogen .
A) belongs to the superfamily of serine proteases and hydrolyzes peptide bonds by using a serine hydroxyl group as a nucleophile in the active site. The pancreas is where chymotrypsin is largely made. To stop its protease activity from dissolving the pancreas, it is created as the inactive zymogen chymotrypsinogen rather than the active version. A different enzyme known as trypsin changes it into its active form when it is secreted into the lumen of the small intestine.
Trypsin is the primary enzyme that breaks down chymotrypsin, which is also known as chymotrypsinogen. Active enzymes can occasionally even cleave the incoming inactive form of themselves.
To learn more about chymotrypsin please click on below link
https://brainly.com/question/13638833
#SPJ4
Explain rutherford's model of atom
Ernest Rutherford suggested the Rutherford Atomic Model, often known as the Rutherford Model, as a nuclear atom or planetary model of the atom in 1911.
What is Rutherford's model supposed to explain?Rutherford's model was unable to explain why atoms are stable. The charged particles known as electrons should ultimately run out of energy and collide with the nucleus if they are continuously rotating around it.
According to the idea, an atom has a tiny, compact, positively charged center called a nucleus, where almost all of the mass is concentrated, while light, negatively charged particles called electrons orbit far around it, much like planets orbit the Sun.
The majority of the atom's space is vacant, according to three key findings of the experiment.
The nucleus is a very small region inside the atom where all the positive charges are gathered.
In comparison to the size of the atom, the size of the nucleus is extremely small.
Learn more about atom at:
brainly.com/question/1266835
#SPJ1
Photosynthesis generates which form of energy for use by the plant?
Answer: Photosynthesis generates chemical form of energy for use by the plant. It is basically a process by which plants convert light energy into chemical energy.
Explanation: Plants absorb water (H2O) and carbon dioxide (CO2) from the soil and atmosphere during photosynthesis. After this, water is oxidized, which means it loses electrons, while carbon dioxide is reduced, which means it receives electrons, inside the plant cell. Water is converted into oxygen and carbon dioxide into glucose as a result. After storing energy within the glucose molecules, the plant releases the oxygen back into the atmosphere. Chloroplasts are tiny organelles that are found inside plant cells and are used to store solar energy. Chlorophyll, a light-absorbing pigment found in the thylakoid membranes of the chloroplast, is what gives plants their green hue. Chlorophyll absorbs energy from blue and red- light waves during photosynthesis and reflects green light waves, giving the appearance of a green- colored plant.
For more information regarding photosynthesis:
https://brainly.com/question/19160081
https://brainly.com/question/26568636
The lack of gravity in pace caue a reditribution of bodily fluid. Decribe what happen to the body due to thi change
Absence of gravity in pace or any actual work is answerable for 30% mortality in men and 60% of the demise rate in ladies. It is the main source of redistribution of bodily fluid .
A portion of the day to day routine exercises which lead to a stationary way of life are perusing, sitting, staring at the TV, utilization of the PC and playing computer games. Illnesses whose chance variable builds because of an absence of activity system are kidney stones, liver issues, hypertension, diabetes, colon malignant growth, despondency, cardiovascular infection, uneasiness, corpulence, osteoporosis and thickening of blood.
Very much like the way that exercises give various positive advantages to your body, absence of activity additionally makes many adverse consequences. At the point when you don't work-out consistently, it can influence your temperament, muscles, bones, heart, joints, levels of glucose and lungs. Absence of exercises will make your bones exceptionally frail, aggregate overabundance body weight, causes glitch of organs or disappointment and heart issues. It would likewise make a few persistent ailments, like hypertension and diabetes.
To know more about bodily fluids, visit here:
https://brainly.com/question/2869075
#SPJ4
(Complete question) is:
The lack of gravity in pace cause a redistribution of bodily fluid. Describe what happen to the body due to this change.
What is the freezing point of a solution of 1.0 mol of glucose in 1.0 kg of water?
As a result, the solution's freezing point is between 1.86 and 1.86 Celsius.
How is the freezing point determined?The molal freezing point depression constant KF and the solute's molality, m, are used to calculate the freezing point depression, which is given by T = KFm. Rearranging results in: Molecules of a solute are equal to (m) x (kg of solvent), where kg of solvent is the mass of lauric acid, the solvent in the mixture.
Can water at one degree Celsius freeze?The Process Of Water Freezing
When it approaches zero degrees, it begins to freeze. Ice crystals begin to develop from water molecules in the first stage. The size of the ice crystals increases in the second stage.
Learn more about Freezing Point.
https://brainly.com/question/9530198
#SPJ4
The solution's freezing point is between 1.86 and 1.86°C.
How is the freezing point determined?The molal freezing point depression constant KF and the solute's molality, m, are used to calculate the freezing point depression, which is given by T = KFm. Rearranging results in: Molecules of a solute are equal to (m) x (kg of solvent), where kg of solvent is the mass of acid, the solvent in the mixture. This provides the solute's moles.
How is freezing point calculated?Assuming that there is no association or dissociation of the solute in solution.
ΔTb=kb×m
T′b−Tb=0.512×0.575
T′b−100=0.512×0.575
T′b=0.2944+100=100.2944
Boiling point of that solution will be 100.2944℃.
ΔT f=kf×m
T f−T′f=1.86×0.575
0−T′f=1.86×0.575
T′f=−1.0695
Freezing point of that solution will be -1.0695℃
Learn more about Freezing Point here:
brainly.com/question/9530198
#SPJ4
Draw the organic product for the following acid-catalyzed hydrolysis reaction. H2S04. H20
In acid-catalyzed hydrolysis, a protic acid (H₂SO₄) is used to catalyze the cleavage of a bond via a nucleophilic substitution reaction, with the addition of water.
What is acid-catalyzed hydrolysis?In organic chemistry, acid hydrolysis can be described as a hydrolysis process in which a protic acid is utilized to catalyze the cleavage of a chemical bond through a nucleophilic substitution reaction, with the addition of water (H₂O).
For example, in the conversion of cellulose to glucose. In the case of esters and amides, it is an acid-catalyzed nucleophilic acyl substitution reaction.
In nucleophilic addition reactions, such as in the acid-catalyzed hydrolysis of nitriles into amides. Acid hydrolysis does not refer to the acid-catalyzed addition of water to double or triple bonds by electrophilic addition.
Acid hydrolysis is used to form monosaccharides with the help of acids, such as HCl, HNO₃, HCOOH, H₂SO₄, etc.
Acidic hydrolysis of an ester gives the product of a carboxylic acid and an alcohol.
Learn more about Acid-catalyzed hydrolysis, here:
https://brainly.com/question/25735055
#SPJ4
What is the state of sodium at 20 degrees?
Sodium is in a solid state at 20 degrees. Table salt, or sodium chloride, is another name for this substance. It is a solid, white crystalline substance that is easily fractious at 20 degrees.
Sodium: What is it?Alkaline earth group (Group a and group b [Ia]) of something like the periodic table element sodium (Na). The element sodium is an extremely delicate silvery-white. Sodium makes up 2.8 percent of the Earth's crust and is the most prevalent alkali metal & sixth most plentiful element on the planet.
What causes low sodium levels most frequently?The main issue is typically having much more water in your body. The salt levels are diluted by the extra water. Hyponatremia is far less frequently brought on by severe sodium lauryl from human body.
To know more about sodium visit:
https://brainly.com/question/24010534
#SPJ4
What are the 8 properties of logarithms?
What are the 3 properties of compounds?
A compound is a substance that is formed when two or more elements chemically combine in a fixed ratio by mass.
Compound is a substance that is made from two or more different elements that have been chemically joined. Some of the examples of compounds includes water (H₂O), which is made from the elements hydrogen and oxygen, and table salt (NaCl), which is made from the elements sodium and chloride.
Important properties of compounds.
Elements in a compound are always in fixed proportion.Compounds can be broken down into chemical form only.Particles present in the compounds are of one kind only.Compounds are homogenous in nature i.e. identical.Learn more about compounds from the link given below.
https://brainly.com/question/14658388
#SPJ4
in an ionic or covalent substance, electrons are shared or transferred between no more than two atoms at a time. however, in a metallic substance, electrons are shared among all of the metal atoms in the sample. how does this explain why metals are more malleable and ductile than ionic and covalent compounds?
Metals are known to be more malleable and ductile than ionic and covalent compounds because the electrons in metals are shared among all of the metal atoms in the sample, forming an electrons "sea" surrounding the metal ions.
A "sea" of shared electrons surrounds the metal ions in a metallic composition composed of all metal atoms. This electron sea is assumed to be responsible for several of metals' distinctive features, including strong conductivity, malleability, and ductility.
Because of the electron sea in a metallic body, metal ions can readily pass by one another and twist the metal without breaking it. The strong chemical connections that hold ionic and covalent compounds together, on the other hand, make it more difficult to change them without rupturing the bonds. Ionic and covalent compounds are less ductile and malleable than metals because of this.
Read more on ionic and metallic substances.
https://brainly.com/question/1103156?referrer=searchResults
#SPJ4
What are the causes of juice spoilage?
Fruit juice spoilage is mostly brought on by the growth of osmophilic and acid-tolerant bacteria. Fruit juice consumption is linked to an increased risk of contracting a foodborne illness. Fruit juices are preserved in various ways to lower the likelihood of outbreaks.
What causes spoilage?
Food can rot for a number of reasons, rendering it unfit for ingestion. Perishable foods' quality and safety can both be impacted by light, oxygen, heat, humidity, and bacteria that cause food decomposition. Foods exposed to these conditions will eventually lose their quality.
Fruit juice spoilage is mostly brought on by the growth of osmophilic and acid-tolerant bacteria. Fruit juice consumption is linked to an increased risk of contracting a foodborne illness. Fruit juices are preserved in various ways to lower the likelihood of outbreaks.
To learn more about spoilage from the given link.
https://brainly.com/question/3578551
#SPJ4
as the number of bonds between two carbon atoms increases, which one of the following decreases? select one: a. number of electrons between the carbon atoms b. bond energy
As the number of bonds between two carbon atoms increases, the bond length decreases. (Option C)
In molecular geometry, bond length refers to the average distance between nuclei of two bonded atoms in a molecule. It is defined as a transferable property of a bond between atoms of fixed types, relatively independent of the rest of the molecule. The length of the bond is determined by the number of bonded electrons i.e., the bond order. The higher the bond order, the stronger the pull between the two atoms and the shorter the bond length. Hence, as the number of bonds increases between two carbon atoms, atoms in bonding come closer to each other and bond length decreases.
Note: The question is incomplete as it is missing options which are a) number of electrons between the carbon atoms b) bond energy c) bond length d) all of these
Learn more about Bond length:
https://brainly.com/question/16012396
#SPJ4
Suppose a friend challenges you to separate a mixture of wood shavings, iron filings, sand, and sugar. The image shows the mixture of the four items. Think about the components of the mixture. Consider how the unique properties of each component might suggest a method you can use to separate it from the rest of the mixture. 1. What tools do you think you could use to separate the mixture into its components? Explain your reasoning.
There are two types of mixture, one is homogeneous mixture and other is heterogeneous mixture. Therefore, the term best describes 10-karat gold is homogeneous mixture. Therefore, in below given ways mixture can be separated out.
What is mixture?When two or more compounds are combined but each ingredient retains its chemical identity, the result is referred to as a mixture. In other words, there is no chemical interaction between the parts of a combination. According to how consistent they are and how well the components' particle sizes match up, mixtures are categorized.
Iron filings can be separated by keeping the magnet near the fillings. The wood shavings could be separated by dissolving the polystyrene with a solvent. Add water to the mixture of sand and sugar. Sugar will dissolve in water and sand will settle down. Sugar can be separated by evaporation.
Therefore, in above ways mixture can be separated out.
To know more about mixture, here:
https://brainly.com/question/12160179
#SPJ1
Match the relational phrases to the corresponding concepts. Zwitterion Isoelectric point Titration COO | HN-C-H 1 CH, .. рк. pH Henderson- Hasselbalch equation OH Serine Hydrogen atom Answer Bank exemplified by measurement of dependent variable of Describes relationship between revealed by net electric charge is zero inflection point
The pH at which the amino acid is neutral is called its isoelectric point. The neutral structure of the amino acid is called Zwitter ion.The pH of a buffer solution is determined using Henderson -Hasselbalch equation. The side chain in the amino acid serine is OH group.
What are amino acids?Amino acids are the building blocks of proteins. There are 20 amino acids found in human. In which essential amino acids are amino acids that have to be uptaken through diet. Non -essential amino acids are in built in our body.
The pH at which the amino acid is neutral is called its isoelectric point. The neutral structure of the amino acid is called Zwitter ion.The pH of a buffer solution is determined using Henderson -Hasselbalch equation.
Each amino acids have different side chains on them and based on it their characteristics changes.The side chain in the amino acid serine is OH group.
To find more on amino acids, refer here:
https://brainly.com/question/15687833
#SPJ4
Which of the following statements best describes a nebula?
Answer:
a cloud of adult stars that floats through space where protostars are born.
Explanation:
hope this helped:)
brainliest for the brains:)
What is parabola example?
The water that is shot up into the air by the fountain takes a parabolic path while coming down is the best example of parabola.
Parabola
A parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. It fits several superficially different mathematical descriptions, which can all be proved to define exactly the same curves.
Parabolas have the property that, if they are made of material that reflects light, then light that travels parallel to the axis of symmetry of a parabola and strikes its concave side is reflected to its focus, regardless of where on the parabola the reflection occurs. Conversely, light that originates from a point source at the focus is reflected into a parallel beam, leaving the parabola parallel to the axis of symmetry.
Learn more about parabola here :-
https://brainly.com/question/21685473
#SPJ4
How many gram of olid alumnuim ulfied can be prepared by the reaction of 10. 0 gram of alumnium and 15. 0 gram of ulfur?how much of the non limiting
reactant in exce?
The mass of [tex]Al_{2} S_{3}[/tex] produced is 15.616 grams.
The reaction taking place is as follows:
[tex]2Al+ 3S[/tex] →[tex]Al_{2} S_{3} (s)[/tex]
Moles of Al = mass/molar mass = 10.0g/27.0g/mol
= 0.370 mol
Moles of S = mass/molar mass = 15.0g/(32.065g/mol)
= 0.468 mol
Al and S reacts in the molar ratio of 2:3.
2 moles of Al reacts with 3 moles of S
0.370 moles of Al will react with S = (3/2)*0.370mol
= 0.555 mol
Similarly, 0.468 moles of S will react with Al = 2/3 *0.468mol
= 0.312 mol
Thus, Al is in excess and S is the limiting reactant (some of Al will be left over ,S will completely react)
So, moles of [tex]Al_{2} S_{3}[/tex] produced=1/3*0.312 mol of S
= 0.104 mol
Mass of [tex]Al_{2} S_{3}[/tex] produced = moles*molar mass of [tex]Al_{2} S_{3}[/tex]
= 0.104mol*150.158g/mol
= 15.616 grams
To learn more about limiting reactants, here
https://brainly.com/question/14225536
#SPJ4
When calcium carbonate reacts with hydrogen chloride, the products are calcium chloride, carbon dioxide and water. If this reaction occurs with 85% yield, what mass of carbon dioxide would be collected in the lab when 6.4 g of calcium carbonate is added to sufficient hydrogen chloride?
When 6.4 g of calcium carbonate is put to enough hydrogen chloride in a lab, 2.38 g CO2 mass of carbon dioxide would be collected.
Calcium carbonate: Is it bad for your health?
Effects on People Human mucous membranes, including those in the eyes, nose, and skin, are physically irritated by calcium carbonate dust. When calcium carbonate dust comes in contact with the eyes, it causes redness, discomfort, and inflammation of the eyelids, whereas when it comes in touch with the skin, it causes mild to moderate localized irritation.
What negative effects does calcium carbonate have?
High blood calcium levels can cause swelling, quick weight gain, or symptoms including nausea, vomiting, constipation, increased thirst or urination, muscle weakness, bone pain, disorientation, lack of energy, or fatigue.
Briefing:
CaCO3 + HCl → CaCl2 + H2CO3 → CaCl2 + H2O + CO2 ( carbonic acid forms CO2 and H2O immediately)
CaCO3 + HCl → CaCl2 + H2O + CO2
Balance:
CaCO3 + 2HCl → CaCl2 + H2O + CO2
Now you have a balanced equation so that you can find the proper mole ratio.
Begin with the given:
6.4g of CaCO3 x 1 mole CaCO3/100.09 g CaCO3 x 1 mole CO2/1 mole CaCO3 x 44.01g CO2/1 mole CO2 = 2.81 g CO2
This is the theoretical yield.
Actual Yield = Theoretical yield x % Yield
AY = 2.81g CO2 x .0.85 =2.38 g CO2
To know more about calcium carbonate visit:
https://brainly.com/question/13565765
#SPJ1
What should you not drink with pewter?
We should not drink alcohol or any type of carbonated drink out of pewter. It should be noted that antique pewter, as well as cheaper eastern pewter, may contain lead.
Why you should not drink alcohol out of pewter?
This discolors to a grey-blue color over time. Drinking a beverage from a tankard made of leaded pewter or lower grades of pewter can be harmful to your health over time. Alcoholic beverages should not be stored in pewter for more than 24 hours, and carbonated beverages should never be stored in pewter vessels. Avoid foods that may stain, such as citrus juice and certain salad dressings.
What is Pewter Pitcher ?Pewter is a metal alloy composed primarily of tin, with the remainder typically consisting of copper, antimony, bismuth, and (occasionally) silver. Lead was used in the past, but it is no longer considered safe.
To know more about Pewter pitcher visit :-
brainly.com/question/29627686
#SPJ4
Alcohol and other fizzy beverages should never be consumed from pewter. It should be noted that both expensive eastern pewter and ancient pewter may contain lead.
Why should you avoid drinking alcohol from pewter?Over time, this turns a grey-blue colour. Over time, consuming liquids from a tankard made of leaded pewter or lesser pewter grades might be detrimental to your health.
Pewter Pitcher: What is it?Tin dominates the composition of the metal alloy known as pewter, with copper, antimony, bismuth, and (rarely) silver making up the majority of the remaining ingredients. Although lead was once used, it is no longer regarded as safe.
To know more about pewter visit ;-
https://brainly.com/question/29626769
#SPJ4
which statement about the most stable lewis structures of cyanamide (h2ncn) and its structural isomer (hncnh) is not correct?
The most stable Lewis structures of cyanamide (H2NCN) and its structural isomer (HNCNH) are not correct.
This is because the two molecules have different molecular structures, which means they have different electron configurations and therefore different Lewis structures.
The Lewis structure of cyanamide (H2NCN) is characterized by two double bonds, one between the nitrogen and carbon atoms, and the other between the nitrogen and hydrogen atoms. This structure is highly stable and is due to the fact that the nitrogen atom has a full octet of electrons.
The Lewis structure of the structural isomer (HNCNH) is characterized by a single bond between the nitrogen and hydrogen atoms, and a triple bond between the nitrogen and carbon atoms. This structure is less stable than the cyanamide Lewis structure because it does not have a full octet of electrons.
In conclusion, the statement that the most stable Lewis structures of cyanamide (H2NCN) and its structural isomer (HNCNH) are not correct is false. The two molecules have different molecular structures and different Lewis structures, with cyanamide having a more stable structure.
Learn more about structural isomer at : https://brainly.com/question/13422357
#SPJ4
Which component is released from the active site of an enzyme during a chemical reaction?reactantproductsubstrateprotein.
The component released from the active site of an enzyme during a chemical reaction is known as: a product.
What is the importance of an enzyme and how does it work?Enzymes can facilitate biochemical reactions in our bodies by acting as a catalyst. With enzyme helps, the reactions inside our bodies happen more quickly and more efficiently, as they lower the activation energy of those reactions.
The reactants (known as substrates) bind with an enzyme's active site. This substance breaks the reactants into a new product. The enzyme will release the product when it is ready. So, the correct answer to the question is: product.
Learn more about enzymes here https://brainly.com/question/29523311
#SPJ4
How does an atom gain a positive 3 charge?
An atom loses three electrons to form ions with a +3 charge, cations have a positive charge.
What is a charge on an atom?Because there are fewer negatively charged electrons remaining to balance the positive charges of the protons in the nucleus, losing electrons causes atoms to gain a positive charge.
Group IIA elements lose two valence electrons to achieve the electron configuration of the noble gas that comes before them in the periodic table.
Therefore, an atom loses three electrons to form ions with a +3 charge to an atom gain a positive 3 charge.
Learn more about atoms, here:
https://brainly.com/question/8478770
#SPJ1
What should the sanitizer level be?
Give examples of environmental concerns I will be taking into account by a mining company when it created a reclamation plan for a mine site
Answer:
The major potential environmental impacts associated with mining and associated mineral processing operations are related to erosion-prone landscapes, soil and water quality, and air quality.
Explanation:
Plants were native to the mining site and making sure the soil is healthy are the examples of environmental concerns taking into account by a mining company when it created a reclamation plan for a mine site.
What are environmental concerns?Land use may change as a result of mine exploration, construction, operation, and maintenance.
It may also have detrimental effects on the environment, such as deforestation, erosion, contamination of nearby streams and wetlands, alteration of soil profiles, increased noise levels, and dust.
Mining is a naturally invasive operation that can alter the landscape over a much wider region than the actual mining site.
Therefore, years after a mine closes, the impacts of this harm can still be felt, adding to greenhouse gas emissions, causing flora and fauna to die, and eroding the land and environment.
Learn more about mining, here:
https://brainly.com/question/26763742
#SPJ2
How many grams of KCl remain in solution at 20 ∘ C?
The amount of KCl that will remain in solution at 20° C depends on the concentration of the solution and the solubility of KCl at that temperature.
What is solubility?Solubility is the ability of a substance to dissolve in a solvent, such as water or alcohol. It is affected by temperature, pressure, and the presence of other substances. Solubility is a physical property of a substance, and it is an important factor in determining the dissolution rate of a chemical in a given solvent. In general, solubility increases as temperature increases, and solubility decreases as pressure increases. Some substances, such as salt, are more soluble in hot water than in cold water. Other substances, such as sugar, are more soluble in cold water than in hot water. Solubility is also affected by the presence of other substances, such as salts, acids, and bases.
The solubility of KCl at 20° C is approximately 55.8 grams per 100 milliliters of water. Therefore, if the solution has a concentration of 1 gram per 100 milliliters of water, then 55.8 grams of KCl will remain in the solution at 20° C.
To know more about solubility click-
https://brainly.com/question/23946616
#SPJ4
Classify the following as intensive or extensive properties of copper.
The properties of copper are:
1. Color - Extensive 2. Melting Point - Intensive1. Color is an extensive property of copper because it is determined by the amount of copper present. For example, when a large amount of copper is present, the color of the material will be a darker shade.
2. Melting point is an intensive property of copper because it is determined by the chemical structure of the material and is not affected by the amount of copper present. The melting point of copper is 1084.62°C regardless of the amount of copper present.
What is extensive properties?Extensive properties are physical characteristics of a substance that depend on the amount of the material present. Examples of extensive properties include mass, volume, and length.
What is intensive properties?Intensive properties are physical characteristics of a substance that are independent of the amount of the material present. Examples of intensive properties include density, boiling point, and melting point.
Learn more about cooper properties:
https://brainly.com/question/16448509
#SPJ4
The Ka of ammonium ion, NH4+, is 5.6 × 10 -10. Calculate the pH of a solution which is composed of 0.45M NH4+and 0.25M NH3.
The solution in question composed has a pH of 10.
The Henderson-Hasselbalch equation is what.
The acid dissociation constant and pH of acids are related by the Henderson-Hasselbalch equation (ka). When the concentration of the acid and its conjugate base are known, the pH of a buffer solution can be computed using this equation.
The following is how the Henderson-Hasselbalch equation is expressed:
Conjugate base/acid logarithm: pH = pKa +
Given that the acid to base ratio is 0.18
The conjugate base to acid ratio is then equal to 1/0.18 = 5.56.
The acid dissociation constant has a value of 5.6 1010 (ka).
pKa = -log ka represents the value.
So, pH is equal to -log Ka plus log(conjugate base/acid).
pH equals (5.6 1010) -log + log (5.6)
pH is equal to -log 5.6 - log 10 - +0.748.
pH = -0.748 + 10 + 0.748
pH = 10
To learn more about composed please click on below link
https://brainly.com/question/22982113
#SPJ4