The first part of a balanced chemical equation for a chemical reaction is shown below:

Cu+2AgNO3→

In order for this equation to be balanced and mass to be conserved in the chemical reaction, how many oxygens (O) atoms must be present in the reaction products? Select the correct answer.

2

3

5

6

The answer to your question is 6

Explanation:

Data

              Cu  +  2AgNO₃   ⇒  

To find the answer, count the number of each element in the reactants

Element                Quantity

Copper                        1

Silver                           2

Nitrogen                      1

Oxygen                        6

Then, in the products, there must be 6 oxygens so in the products there must be 6 oxygens so the reaction is balanced.              

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the answer is b. dilution