Question

? + 2O2 → ? + 2H2O + Heat.​

Answer 1

Answer:

CH4 + 2O2 → CO2+ 2H2O + Heat.​

Explanation:

This is a chemical reaction to burn methane gas in oxygen. The products are carbon dioxide and water.

CH4+2O2→CO2+2H2O

CH4 is Methane Gas

O2 is Oxygen Gas

CO2 is Carbon Dioxide

H2O is Water

This reaction is also a redox reaction because carbon is oxidized and oxygen is reduced.

As we can observe, carbon has an oxidation state of -4 in methane and is oxidized to an oxidation state of +4, similarly, oxygen has an oxidation state of 0 in the gaseous state, while it is reduced to -2 after the reaction

Oxidation: This is a process in which oxygen is added to a substance or hydrogen is released from a substance.

Reduction: This is a process in which hydrogen is added to a substance or oxygen is released from a substance.