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14 September, 21:36

When burning methane gas, which outcome best demonstrates the law of conservation of mass?

A.

CH4 → CO2 + H20

B.

CH4 + O2→ CO2 + 2H20

C.

CH4 + O2 → 2CO2 + 2H20

D.

CH4 + 2O2 → CO2 + 2H20

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Answers (1)
  1. 14 September, 21:49
    0
    Answer Option D

    Counting the number of atoms each side of the equation shows that the numbers balance.
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