Cu(s) + AgNO3(aq) → Cu(NO3)2(aq) + Ag(s) The unbalanced equation for the reduction of silver nitrate by copper is shown here. What is the coefficient for Cu(NO3)2 in the balanced equation?

On reduction reaction, the coefficient of  Cu(NO3)2 in the balanced equation is 1.

We are given a chemical reaction where Copper is treated with Silver Nitride in a aqueous medium to form Copper Nitride and Silver as precipitate. So, the given chemical reaction is,

Cu(s) + AgNO3 (aq) → Cu(NO3)2 (aq) + Ag(s)

Now, the balanced chemical reaction will be,

Cu(s) +2 AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag(s)

Clearly, all the elements in above chemical reaction are balanced. And the coefficient of product Copper Nitride (Cu(NO3)2) is 1.

Thus, we can conclude that on reduction reaction, the coefficient of  Cu(NO3)2 in the balanced equation is 1.

Learn more about the balanced chemical reaction here:

link

1

Explanation:

Cu + 2AgNO3 ---> Cu(NO3)2 + 2Ag

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real, smaller and upside-down.   so the answer should be b.