In a chemical reaction, hydrogen gas reacts with oxygen gas to form carbon dioxide and water molecules, producing heat. What kind of chemical reaction is this, and why?

Question

In a chemical reaction, hydrogen gas (H₂) reacts with oxygen gas (O₂) to form carbon dioxide (CO₂ molecules) and water molecules (H₂O), producing heat.

What kind of chemical reaction is this, and why?

Answer 1

Anytime you are combining something with oxygen and making carbon dioxide, it is a combustion reaction.

Since we are producing heat, this is an exothermic reaction.