Question

The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H2O) and O2 gas. Which coefficients would be placed in front of water and oxygen?
2 in front of water and 2 in front of oxygen
1 in front of water and 2 in front of oxygen
1 in front of water and 1 in front of oxygen
2 in front of water and 1 in front of oxygen

Answer 1

Answer:

correct answer

Explanation:

2 in front of water and 1 in front of oxygen

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Answer 2

2 in front of water and 1 in front of oxygen are the correct coefficients.

• For the chemically balanced equation, atoms on each side should be equal.
• Question mentions four atoms of oxygen on reactant side, so, product should also have four atoms of oxygen.
• Since oxygen molecule is made of two oxygen atoms, 1 will be it's coefficient.
• Thus two atoms of oxygen should be there on product side. Hence, 2 will be the correct coefficient for water.