Which of the following is an easy and sustainable way for campuses to reduce waste?

a. recycling bins
b. canals for dumping waste
c. Incinerators for garbage
d. outsource to companies that specialize in recycling

The reaction, which is part of the electron transport chain. the abbreviation Q represents coenzyme Q. use the appropriate abbreviation for the product : FADH₂  +  Q ---->   QH₂   +  FAD

The reaction, which is part of the electron transport chain. the abbreviation Q represents coenzyme Q. use the appropriate abbreviation for the product :

FADH₂  +  Q ---->   QH₂   +  FAD

in this reaction ,the  FADH₂ is oxidize. as we all know that that loss of electron is oxidation. the  FADH₂ is acts as a reducing agent. The Q gains the electron and gets reduce because gain of the electrons is called as the reduction and act as a oxidizing agent.

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The elements that have atomic radii larger than S are Al, Na, P, and Se.

The correct options are A, C, E, and F.

The atomic radii of elements are defined as the distance between the nuclei of two covalently bonded nuclei of atoms of elements.

Atomic radii of elements show periodicity.

The atomic radii of elements increase from top to down in a group in the periodic table whereas the atomic radii of elements decrease from left to right across a period in the periodic table.

Comparing the atomic radii of sulfur, S, and the given elements:

Al has a larger atomic radii

Cl has a smaller atomic radii

Na has a larger atomic radii

O has a smaller atomic radii

P has a larger atomic radii

Se has a larger atomic radii

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The properties of starch are that they are colorless and tasteless in nature and are the source of carbohydrates in our diet.

Starch are insoluble in cold water, alcohol, and other solvents.

Starch is composed of long chains of sugar molecules which are linked together linked together forming bonds and linkages. The most basic type of starch is amylose it is  a linear polymer and another example is  amylopectin which is a branching polymer.

Starch is the storage part in a plant where they store the excess energy in the form of glucose. This glucose is an important part of human diet and it provides energy as taken in the form of sugar.

Amylase is a starch-breaking enzyme found in saliva and the pancreas the first step in the digestion process is the breaking down of starch by enzymes.

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Hybridization is the concept of when two atomic orbitals mix up to give rise to a new type of hybridized orbitals. This intermixing of orbitals oftenly results in the formation of hybrid orbitals having entirely different energies, shapes, etc.

According to the question , Here the hybridization of the given atoms are:

1] For HCN, there are TWO electron groups surrounding the central carbon atom: a single C-H bond and a triple C-N bond. The carbon atom in HCN is therefore sp hydribidised.

2] In HCN there is a triple bond between carbon and nitrogen. A triple bond consists of the end-to-end overlap of two sigma bonds and the side-to-side overlap of two unhybridized p-orbitals. Therefore, in this case nitrogen has sp hybridization.

3] For NH₄⁺ : Since the geometry is tetrahedral, the hybridization is sp3.

4] For CH₃⁻ is sp3,

5] CH₃⁺ is sp2.

6] NH₃ hybridization is sp3

7] C[CH₃]₄ the hybridization is sp3.

8] H₃O⁺ ion, here O is sp3 hybridized

The given question is incomplete and the completed question is given as,

What is the hybridization of all the atoms (other than hydrogen) in each of the following species? HCN, NH₄⁺, CH₃⁻, CH₃⁺, NH₃, C[CH₃]₄, H₃O⁺.

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False; Chromium can help you build bigger muscles and stay lean when you are lifting weights.

With an atomic number of 24 and the chemical symbol Cr, chromium is a chemical element. It is the first part of group 6. It is a steely-gray, strong, brittle transition metal that is shiny. [4]

The great corrosion resistance and hardness of chromium metal make it valuable. It was a big development in the production of steel when it was realised that steel could be converted into stainless steel, which has a high resistance to rust and discolouration. 85% of commercial use is made up of chrome plating (chromium electroplating) and stainless steel combined. Chromium is highly valued as a metal because it can be polished to a high degree while maintaining its brilliance. Polished chrome reflects about 70% of the visible spectrum and over 90% of infrared radiation.

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Answer:

59.46 g

Explanation:

To answer this question, the molecular weight of ammonium sulfate must be computed.  To accomplish this, the weights of the individual elements must be noted.
N=14.01[tex]\frac{g}{mol}[/tex]

H=1.01[tex]\frac{g}{mol}[/tex]

S=32.07[tex]\frac{g}{mol}[/tex]

O=16.00[tex]\frac{g}{mol}[/tex]

To compute the molecular weight:

[tex]2[14.01\frac{g}{mol}+4(1.01\frac{g}{mol})]+32.07\frac{g}{mol}+4(16.00\frac{g}{mol})=132.14\frac{g}{mol}[/tex]

To calculate the mass:

[tex]0.45 mol(\frac{132.14g}{1mol})=59.463g[/tex]

Ice melting is an example of an endothermic reaction because it absorbs heat.

When ice melts spontaneously, there is a physical shift. But if you employ a reactant, like salt, to hasten the process, it becomes a chemical reaction. While exothermic reactions emit heat, endothermic reactions absorb it. A example endothermic process is ice melting.

Since there is no chemical change occurring to the ice as it melts, ice melting is not a chemical reaction. The water molecules remain unchanged and continue to be water molecules.

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The mass of the water of crystallization is 0.7475 g.

We know that a hydrated compound is a compound that contains in it the water of crystallization. This is the water that becomes attached to the structure of the compound that is in question.

In this case, we have that the salt that is question is a hydrate of magnesium sulfate and we have.

Mass of the hydrated salt =  2.5000 g

Mass of the anhydrous salt =  1.7525 g

Mass of water present = 2.5000 g - 1.7525 g

= 0.7475 g

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Missing parts;

A  2.5000 g sample of epsom salt (maghesiun sulfate hydrate) is heated until the crystals arereduced to a dry powder. after cooling the residue was found to weigh 1.7525 g. calculate the mass of the water.

Balance the following equation:

A chemical equation is a symbolic writing of a chemical reaction. The chemical formulas of the reactants are written to the left of the equation and the chemical formulas of the products are written to the right

In basic solution:

In acidic solution:

in neutral solution:

It doesn't involve any proton or hydroxide ion in the reaction. There is no 2S₂O₃²⁻ ion and S₄O₆²⁻, the correct form is S₂O₃²⁻ and S₄O₆²⁻. This reaction comes in the third series of the Winkler method of determining Dissolved Oxygen.

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Yes we can put lemonade in a silver pitcher.

What  is Acid ?

Acidic substances are typically easy to recognise by their sour flavours. A molecule that can donate an H+ ion and keep its energetic favorability even after losing H+ is a basic definition of an acid. Blue litmus paper is known to turn red when exposed to acids.

Bases, on the other hand, have a smooth consistency and a bitter flavour. A base that may dissolve in water is known as alkali. When these substances interact chemically with acids, salts are created. Red litmus has a history of becoming blue on bases.

The definitions of the terms acid and base vary depending on how one chooses to see the properties of acidity and basicity.

Yes, acidic fruit juices like orange or lemon juice have an interaction with silver in that they help to eliminate some types of surface discoloration that may develop. Because of this, jewellers soak jewellery in a moderate acid for 5 to 15 minutes to remove these coatings off the surface of the silver, among other things.

In order to prevent these dissolved chemicals from getting into your juice, it is a good idea to polish and then completely wash the silver pitcher or other silver crockery before use. Although it isn't particularly harmful, it might alter the flavor;)

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Answer:

457.04 g

Explanation:

Molar mass of C8H18 is 8(12.01) + 18(1.01) = 114.26 g/mol

mass of 4 mol = 4(114.26) = 457.04 g

The order formed from least to most: H< O<N <C<P<S which is determined by the valence electrons.

The octet rule is a chemical rule of thumb that displays the concept that main-institution factors have a tendency to bond in this sort of manner that every atom has 8 electrons in its valence shell, giving it the equal digital configuration as a noble gas. Octet rule states that atoms tend to form compounds in a way that eight valence electrons.

Elements Valence electrons

C 4

H 1

N 5

O 6

P 5

S 6

Number of bonds formed from least to most: H< O<N <C<P<S

Since, P and S has d -orbitals, they can form more number of bonds.

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To accomplish a satisfactory separation, a slow, even distillation is required since only under these circumstances can vapor and liquid in the distillation apparatus be in balance with one another.

The best equilibration and heat transport can essentially be achieved through slow, steady distillation. If you heat the mixture too quickly, the vapors could not condense as quickly as you'd want, wasting some of the column. Packaging supplies are also essential. Packing materials with a large surface area give surfaces on which condensation can happen.

Additionally, bumping may happen if the distillation proceeds too quickly. -The target liquid's vapors condense too soon and fall back into column.

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Calculate the concentration in terms of mass by solution mass % for a solution that has 20g of sugar dissolved in 180g of water.

The answer is that 20g of sugar dissolves in 180g of water. 180g plus 20g equals 200g for the solution's total mass.

Mass of the solute / Total mass of the solution 100, i.e. 20/200 100 = 10%, is how you calculate the mass by mass percentage of the solution.

Coffee, salt, and sugar are a few items that can dissolve in water. These things break down. Usually, warm or hot water makes them dissolve more quickly and readily. Sand and pepper are both soluble in hot water, but not at room temperature.

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The % mass of copper in your product will be 3.64 %.

Calculated slope = 64.5

Mass of copper product = 0.055 g

Initial volume (V1) = 25 ml

Final volume (V2) = 100 ml

Absorbance (A) = 0.323

% mass of copper = ?

To find out the concentration (C) we use the following equation

C = A / slope

Put the values

C (M2) = 0.323 / 64.5

C (M2) = 0.00501 g/L

To calculate M1 we use the following equation.

M1V1 = M2V2

M1 = 0.00501 * 100 ml / 25 ml

M1 = 0.02004 g/L

mass of copper = Penny solution x Volume

mass of copper  = 0.02004 g/L x 0.1 L

mass of copper = 0.002004 g

% mass of copper = (total mass of copper ÷ mass of penny) x 100

% mass of copper = (0.002004 / 0.055 ) x 100

% mass of copper = 3.64 %

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The the NH₂ group in the given compound is called amino group and the Cl group is chloride. The functional group C=O is called ketonic group. The COR in the first end is called an alkoxy group and the functional group OH is called hydroxy group.

Functional group in an organic compounds are groups with heteroatoms such as N, O, halogens etc. The organic compounds are named based on the position of these functional groups in the compound. Their prefix or suffix are given to the name.

The functional group OH is called hydroxyl group and the group COR is an ether or alkoxy group. The C=O group is called a carbonyl or ketonic group.

The the NH₂ group in the given compound is called amino group and the Cl group is chloride. The compound contains hydroxyl group, alkoxy group and bromide group also.

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Absolutely! Utilize those lovely dishes to the fullest. Always keep in mind that any acidic food, such as tomatoes, oranges, and vinegars, will create spots on pewter, just like they do on sterling.

Cut flowers should not be placed inside a jug if you want to use it for something else. Additionally, avoid storing acidic foods or fluids in pewter for extended periods of time since this may cause the metal to tarnish.

Any form of meal, including salads, can be prepared in Mexican pewter. Both the refrigerator and the oven are compatible with it. Although it is not advised for baking, the majority of Mexican Pewter products are authorized for a maximum temperature of 350 degrees Fahrenheit.

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The electron-poor groups are the ones that make up the majority of the electrons in the material.

This is why it is critical that you divide compounds by the number of electrons they contain. In other words, if you have a compound with two electrons, you want to look at the two-electron group, not the three-electron group. So, if you have a compound with two electrons, you should look at where the two electrons are rather than where they were. Start with the group containing the two electrons and work your way down. Essentially, we want to divide compounds into three groups, three electron groups. The first group has a low electron density, the second has a high electron density, and the third has no electrons. The first group is the easiest to distinguish, but you can see that the first group contains the most electron-rich compounds. The second group is more difficult to distinguish. Because the compounds in the group will have two electrons, it is electron rich. The third group is the most difficult to enter, and it's clear that the second group contains the most electron-free compounds.

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Answer: The four main types of weathering is I think, Chemical, Physical, Biological, and Mechanical weathering. But if you're talking about main agents then it will have to be water, ice, air, and temperature.

Explanation:

Hope this helps! Tried my best.

The numerical value of x is 4 for the elements belonging to group 16.

The outermost shell or orbital of an atom is called its valence shell. The electrons in these shells take part in bonding with other atoms. It may be fully filled or half-filled. The group 16 elements have the general electronic configuration ns2 npx. The general valence electron configuration of group 16 elements is ns2 np4. Group 16 elements have six electrons in their valence shell. Thus, the value of x=4.

The group 16 elements are oxygen (O), Sulfur (S), Selenium (Se), Tellurium (Te), Polonium (Po) etc.

Thus, the valence electrons will be same for the elements is ns2 np4 and therefore the numerical value of x is 4.

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Enzyme is the protein that catalyzes a biological chemical reaction. Pathways of enzymes called metabolic pathways that convert a substrate molecule through a series of metabolic intermediate.

The pathways of enzyme called metabolic pathway is a series of interconnected biochemical reactions that convert a substrate molecule or molecules through a series of metabolic intermediates yielding a final product or products. Chemical reactions in metabolic pathways rarely take place spontaneously. Each reaction step is catalyzed by a protein called an enzyme. Enzymes are important for catalyzing all types of biological reactions. Those that require energy as well as those that release energy. This involves two pathways. Anabolic pathways and catabolic pathways. Anabolic pathways synthesize molecules and require energy. Catabolic pathways break down molecules and produce energy.

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In the picture representation of electromagnetic waves,

a) Lowest frequency - C

b) Second Highest energy - A

c) Highest energy - B

d) Shortest wavelength - B

Wavelength can be defined as the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire. In wireless systems, this length is usually mentioned in meters (m), centimeters (cm), or millimeters (mm).

If the wavelength of electromagnetic waves is low, the frequency of a wave is also low and the energy is low.

If the wavelength of electromagnetic waves is short, the frequency of a wave is also high and the energy is high.

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The enantiomer of the compound: ClOH₂

Generally, To draw the enantiomer of a compound, you need to flip its chiral center, which is a carbon atom bonded to four different groups. In the compound you provided, ClOH, there is no chiral center.

Therefore, there is no enantiomer.

If you have a compound with a chiral center and you want to draw its enantiomer, you can follow these steps:

Identify the chiral center in the compound. The chiral center is a carbon atom bonded to four different groups.

Draw the compound, making sure to include all the atoms and bonds.

Flip the compound horizontally.

For each bond to a chiral center, swap the two groups attached to that bond.

For example, the compound (S)-2-chlorobutane has a chiral center at the carbon atom bonded to a chlorine atom, a hydrogen atom, and two methyl groups (-CH₃). To draw its enantiomer, (R)-2-chlorobutane, we can follow these steps:

The resulting compound is (R)-2-chloroquine.

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A valence issue is an issue  on which most voters and candidates share the same position.

A valence issue is one on which the majority of voters are in agreement. Voters use valence issues to assess a political party's effectiveness in achieving a particular goal or quality because valence issues are symbolic of such things.

The valence issue notion is a technique of speculating on the reasons why voters support opposing parties in a general election. The theory was developed in response to Donald Stokes' critique of theories of voting behavior, which Stokes considered as being excessively limited to notions of a voter's reasoning and ideological impulses, as with spatial models of party competition. Since Stokes noted that voters occasionally were not constrained by ideology or self-interest during his assessment of past U.S. elections.

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Helium is the noble gas out of the following options given.

The amount of protons an atom contains determines its atomic number.

The atomic number of a neutral atom with 30 protons and 34 neutrons is 30.

An isotope of sodium with a mass value of 25 has 11 protons.

Gases that are noble or inert. Helium, neon, argon, krypton, xenon, and radon are the noble gases, or inert gases, that make up group 8A (or VIII A) of the periodic table. The name of these elements refers to how little they react with other elements or compounds.

The atomic number is determined by the number of protons, which is always equal to the number of electrons in a neutral atom.

Sodium has an atomic number of 11. Since the atomic number in this instance is 11, the number of protons is likewise 11. The number of protons is equal to the atomic number.

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Answer:

Binary Ionic Compounds Containing a Metal and a Nonmetal. A binary compound is a compound formed from two different elements. ...

Ionic Compounds Containing a Metal and a Polyatomic Ion. Metals combine with polyatomic ions to give ionic compounds. ...

Acids and Acid Salts. ...

Binary Compounds Between Two Nonmetals.

Explanation:

Answer:

The element that only has 3 electrons is Lithium

Separation of two molecules joined by a hydrogen bond requires 10 to 30 kJ mol–1, roughly 10 times the energy needed to overcome dipole forces. Thus hydrogen bonding can account for the unusually high boiling points of NH3, H2O, and HF

The listed compounds have molecular weights between 44 and 46.Extensive intermolecular H-bonding occurs in CH3CH2OH, which causes molecules to link together.It has the greatest boiling point as a result.

Alcohols have an extremely high boiling point due to their hydrogen bonds.Since ethanol experiences a lot of hydrogen bonding, it has the hottest boiling point.

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The molar atomic mass of magnesium is given as 24 g mol⁻¹.

Molar mass of a substance is defined as the mass in grams of one mole of the compound. In any substance, the total amount of entities present e.g. atoms, molecules, ions, is defined as a mole. A mole of any substance is equal to 6.022×1023 molecules or atoms.

The molar mass of a compound is basically calculated by adding the quality atomic masses (in g/mol) of the constituent atoms. For example, the mass of titanium is 47.88 amu or 47.88 g/mol. In 47.88 grams of titanium, one mole or 6.022 x 1023 titanium atoms are present.

As molar atomic mass of magnesium is 24 g mol⁻¹ so, one mole of magnesium weighs 24.31 g.

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