SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CH4 + 2O2
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1
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2
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3
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4
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Explanation:
Detailed explanation-1: -This balanced equation shows an equal number of each atom on both sides and thus the same mass. There is 1 C, 4 H, and 4 C on each side of the chemical equation. Thus, this balanced equation is in accordance with the law of conservation of mass.
Detailed explanation-2: -Because each water molecule, H2O, contains only one oxygen atom, two water molecules must form for each oxygen molecule that reacts. The coefficient 2 in front of the H2O(l ) makes this clear.
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