Chemical equilibrium is relatively rare in living cells. An example of a reaction at chemical equilibrium in a cell would be

(D) a chemical reaction in which both the reactants and products are not being produced or used in any active metabolic pathway

Explanation:

A) a reaction in which the free energy at equilibrium is higher than the energy content at any point away from equilibrium

B) a chemical reaction in which the entropy change in the reaction is just balanced by an opposite entropy change in the cellʹs surroundings

C) an endergonic reaction in an active metabolic pathway where the energy for that reaction is supplied only by heat from the environment

D) a chemical reaction in which both the reactants and products are not being produced or used in any active metabolic pathway

E) no possibility of having chemical equilibrium in any living cell

The correct answer for a reaction that describes chemical equilibrium in a cell would be a chemical reaction in which both the reactants and products are not being produced or used in any active metabolic pathway .

A reaction in chemical equilibrium is a bi-directional reaction in which both the reactants and the products are present in a stoichiometrically balanced way within the system at a given period of time under specific conditions.

From the definition, a reaction would be in equilibrium if

The correct option is, therefore, D

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

it's all four options.