Question

Robin and Alex are discussing how water molecules form when hydrogen and oxygen atoms combine. Robin writes the following chemical equation to explain the formation of water.

However, Alex has a different opinion and suggests that the chemical reaction can be better represented by using the equation below.

Why does Alex’s equation better represent the reaction?

Answer 1

The number of oxygen atoms is the same before and after the reaction.

Step-by-step explanation:

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Answer 2

the answer is B

Explanation: the number of oxygen atoms is the same before and after the reaction