Question

when methane (ch₄) is burned in the presence of oxygen (o₂), which products are formed?
a. hydrogen gas and water
b. carbon monoxide and water
c. carbon dioxide and hydrogen gas
d. carbon dioxide and water

Explanation:

The complete combustion of methane ($CH_4$) in the presence of oxygen ($O_2$) follows the chemical - reaction equation $CH_4 + 2O_2
ightarrow CO_2+2H_2O$. So the products are carbon dioxide and water.

Answer:

d. Carbon dioxide and water