How does assigning oxidation states in compounds help you balance redox reactions?a. The oxidation state tells you how the bonding electrons are arrayed in an atom or molecule. b. The oxidation state tells you about an atom or molecule’s potential to accept or donate electrons. c.The oxidation state tells you the exact charge in each atom. d. The oxidation state is the equivalent of the formal charge. I'm a little stuck on chemistry homework.

Answers

Answer 1
Answer: The best answer is B.....
In my words though, the oxidation state helps with you knowing how many electrons are lost or gain by the reactant to produce its product and by knowing this you can then balance the electron transfer and ultimately the equations.


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When harmful bacteria invade a wound, the skin around the wound turns red. This is known as:

Answers

Answer:

Inflammation

Explanation:

Inflammation is the response to a cut. The blood vessels expand when you get cut to allow white blood cells to flock to the wound site. These attack any bacteria that got past the clot. If you mean excess bacteria, then that would be an infection.

How the moon surface is visible to an observer on earth

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The moon surface isvisible to an observer on earth due to the gravitational force that attracts themoon to the earth. The more massive the body is, the more the smaller body isattracted to the larger body. We can only see the side of the moon due to thespeed at which the moon rotates.

Which factor is generally responsible for high melting points?

Answers

Strong intermolecular ion-ion forces are responsible for high melting points. Thus the solid state requires close proximity and high order to have high melting point. Hope this answer helps. Good luck!

Answer;

Intermolecular forces.

Explanation;

  • Melting point is the temperature at which a solid melts or a solid changes to a liquid.  In liquids melting point is similar to the freezing point.
  • Melting point of a substance depends on the molecular composition, force of attraction between molecules and also the presence of impurities.
  • A strong force of attraction between molecules results in a higher melting point. Such that stronger intermolecular forces results to a higher melting point.
  • For example, the melting point of ionic compounds is higher due to the strong electrostatic forces joining ions.

in a molecule of methane, carbon (having four valence electrons) binds to four hydrogen atoms. how many lone pairs of electrons will be represented in the lewis structure of methane? a. four b. two c. one d. zero

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D. Each bond is a single bond. Allowing all 4 valence electrons in the carbon to be taken up by the one valence electron in the four hydrogen atoms.

Which of the following adaptations would you expect tofind in an animal in the alpine biome, but not in the taiga

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I think the best answer is migration. In an alpine biome, animals have two problems which is the very cold temperature and the UV rays from the sun. Most alpine animals hibernate and migrate to warmer areas of the mountains when the temperature continues to drop.

Answer:

I think the best answer is migration. In an alpine biome, animals have two problems which is the very cold temperature and the UV rays from the sun. Most alpine animals hibernate and migrate to warmer areas of the mountains when the temperature continues to drop.

tert-Butyl alcohol is a solvent with a Kf of 9.10 ∘C/m and a freezing point of 25.5 ∘C. When 0.807 g of an unknown colorless liquid was dissolved in 11.6 g of tert-butyl alcohol, the solution froze at 15.3 ∘C.Which of the following is most likely the identity of this unknown liquid?tert-Butyl alcohol is a solvent with a of 9.10 and a freezing point of 25.5 . When 0.807 of an unknown colorless liquid was dissolved in 11.6 of tert-butyl alcohol, the solution froze at 15.3 .Which of the following is most likely the identity of this unknown liquid?ethylene glycol (molar mass = 62.07 g/mol)1-octanol (molar mass = 130.22 g/mol)glycerol (molar mass = 92.09 g/mol)2-pentanone (molar mass = 86.13 g/mol)1-butanol (molar mass = 74.12 g/mol)

Answers

Answer: ethylene glycol (molar mass = 62.07 g/mol)

Explanation:

Depression in freezing point :

Formula used for lowering in freezing point is,

\Delta T_f=k_f* m

or,

\Delta T_f=k_f* \frac{\text{mass of solute}}{\text{molar mass of solute}* \text{weight of solvent in kg}}

where,

T_f = change in freezing point

k_f = freezing point constant= 9.10^0C/m

m = molality

Given mass of solute = 0.807 g

Molar mass of solute=? g/mol

weight of solvent in kg= 11.6 g=0.0116 kg

\Delta T_f=T^(o)_f-T_f=25.5^0C-15.3^0C)=10.2^0C

10.2=9.10* \frac{0.807}{\text{molar mass of solute}* 0.0116kg}

{\text{molar mass of solute}}=62.07 g/mol

Thus the solute is ethylene glycol which has same molecular mass as calculated, i.e 62.07 g/mol.