Question

If 4.2 g of methane reacts with excess oxygen gas to form carbon dioxide and water in the following chemical equation, how much water is produced in the reaction?

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

A. 4.2 g
B. 3.7 g
C. 4.7 g
D. 9.4 g

Answer 1

@JFraser A right?

Answer 2

@diamondboy is it A?

Answer 3

hang on

Answer 4

1. Convert 4.2g methane to moles
2. divide the moles by 1 (number in front of methane) multiply by the number 2 in front of H2O

Answer 5

its actually D

Answer 6

so sorry for givin d answer

Answer 7

thanks for correcting me! :))

Answer 8

convert moles of H2O to grams of H2O with grams = moles/molecular mass

Answer 9

Thank God