When two molecules of hydrogen react with one molecule of oxygen, the mass of reactants is $36$ , what is the mass of products?

18

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36

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9

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32

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Solution

The correct option is B $36$
The Law of conservation of mass states that the total mass of reactants is equal to the total mass of products. In any chemical reaction, the total mass of the substance before and after the reaction is the same although its matter undergoes a physical change.

$2 H_{2} + O_{2} ⟶ 2 H_{2} O$

Hence, the mass of the product i.e., water is $36$ .

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When two molecules of hydrogen react with one molecule of oxygen, the mass of reactants is 36, what is the mass of products?

When two molecules of hydrogen react with one molecule of oxygen, the mass of reactants is $36$ , what is the mass of products?