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zaharov [31]
3 years ago
6

Which is the answer?

Chemistry
2 answers:
Digiron [165]3 years ago
8 0
I believe your answer is B, but im not completely sure
professor190 [17]3 years ago
3 0
The answer is B.Steel
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When nad becomes nadh, it is being? oxidized and releasing chemical energy. reduced and gaining chemical energy. oxidized and ga
3241004551 [841]

When NAD becomes NADH, it is being reduced and gaining chemical energy.

Nicotinamide adenine dinucleotide (NAD), a coenzyme, can exist in two forms, NAD⁺ (oxidized) and NADH (reduced form).

Electrons and protons released in catabolism reactions are attached to NAD⁺. The conversion of NAD⁺ to NADH is important reaction for production of ATP during the cellular respiration.

Reduction is lowering oxidation number because element, ion or compound gain electrons.

Chemical equation for reaction of reduction of NAD⁺ (see picture below):

NAD⁺ + 2e⁻ + H⁺ → NADH

Nicotinamide adenine dinucleotide (NAD) is made of two nucleosides joined by pyrophosphate.

More about reduction :brainly.com/question/25334331

#SPJ4

8 0
2 years ago
(AKS 2e) Group 2 metals bond with nonmetals or polyatomic ions. What question
Lyrx [107]

Answer:

Will group 2 elements lose electrons to bond with nonmetals in group 17 in a

1:2 ratio?

Explanation:

Metals are electropositive in nature. This means that they loose electrons. Thus, metals form ionic bonds by loosing electrons to non metals.

Elements of group 2 have a valency of 2 while those of group 17 has a valency of 1 so the ratio in which group 2 elements bond with elements of group 17 is 1:2. Hence the answer.

3 0
3 years ago
If the rate of decrease for the partial pressure of N2H4N2H4 in a closed reaction vessel is 70 torr/htorr/h , what is the rate o
german

Answer:

r_{NH_3}=140torr/h

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

N_2H_4 (g) + H_2 (g) \rightarrow 2 NH_3

Thus, in terms of pressures, the rate becomes:

-r_{N_2H_4}=\frac{1}{2} r_{NH_3}

Thus, the rate of change for the partial pressure of ammonia turns out:

r_{NH_3}=2*(-r_{N_2H_4})\\r_{NH_3}=2*[-(-70torr/h)]\\r_{NH_3}=140torr/h

The rate of decrease of partial pressure of urea is taken negative as it is a reactant whereas ammonia a product which has 2 as its stoichiometric coefficient.

Best regards.

7 0
3 years ago
A student combined two colorless aqueous solutions. One of the solutions contained Na2CO3 as the solute and the other contained
Kazeer [188]

Answer:

Bubbles will be formed when two solutions will be combined.

Explanation:

When the solution containing Na_{2}CO_{3} and HCl as a solute will be combined, the reaction will be as follows,

Na_{2}CO_{3}(aq) + 2HCl(aq) \rightarrow   2NaCl(aq)+ H_{2}O(l)+CO_{2}(g)

As a result of combination of the two solutions bubbles will be formed which will depict the evolution of carbon dioxide gas.

5 0
3 years ago
Determine the approximate mass of the isotope of carbon in the image.
avanturin [10]
The answer is gonna be D I believe
7 0
3 years ago
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