Chemistry
Grade-9
Easy
Question
By the combustion of 20gm of methane what is the amount of carbon dioxide formed?
- 22 gm
- 44 gm
- 66 gm
- 88 gm
Hint:
1 mole methane gives 1 mole carbon dioxide.
The correct answer is: 66 gm
The balanced equation of burning of methane:
CH4 + 2O2 
CO2 + 2H2O
1 mole methane gives 1 mole carbon dioxide.
16g methane gives 44g carbon dioxide.
20g methane gives 55g carbon dioxide.
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