Question

how many moles of water and carbon dioxide are produced by combustion of 0.5 methane ?​

Answer 1

Explanation:

CH4 + 2O2 -----> CO2 + 2H2O

Hence 1 mol methane produces = 2 mol H2O and 1 mol CO2

So, 0.5 mol methane produces = 1 mol H2O and 0.5 mol CO2