1. The balanced chemical equation for the combustion of methane is: CH4(g) + 2 O

Question

1. The balanced chemical equation for the combustion of methane is: CH4(g) + 2 O2(g) ––––> CO2(g) + 2 H2O(g) Which of the following statements concerning this equation is/are correct?

1. One gram of CH4 reacts with two grams of O2, producing one gram of CO2 and two grams of H2O. 2. One mole of CH4 reacts with two moles of O2, producing one mole of CO2 and two moles of H2O. 3. One molecule of CH4 reacts with two molecules of O2, producing one molecule of CO2 and two

molecules of H2O.

A) 1 only B) 2 only C) 2 and 3 D) 1 and 3 E) 1, 2 and 3

Explanation / Answer

CH4(g) + 2 O2(g) ––––> CO2(g) + 2 H2O(g)

Correct statements are (C) 2 and 3

(2) One mole of CH4 reacts with two moles of O2, producing one mole of CO2 and two moles of H2O

(3) One molecule of CH4 reacts with two molecules of O2, producing one molecule of CO2 and two molecules of H2O

Correct statement for 1 will be

16 gram of CH4 reacts with 32 grams of O2, producing 44 gram of CO2 and 36 grams of H2O

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