In a rocket, a fuel combines with oxygen and burns violently.

Question

What kind of chemical reaction is this, and why?

Responses

tarnishing, because oxygen burns violently and it releases heat
tarnishing, because oxygen burns violently and it releases heat

combustion, because the reaction has reactants but no products
combustion, because the reaction has reactants but no products

combustion, because oxygen is a reactant and it releases heat
combustion, because oxygen is a reactant and it releases heat

tarnishing, because the reaction has reactants but no products

Answer 1

The correct response is:

combustion, because oxygen is a reactant and it releases heat.

This is because the reaction between fuel and oxygen involves burning, which is characteristic of combustion reactions. Combustion typically produces heat and light as products and involves reactants like fuel (which can be various hydrocarbons) and oxidants (commonly oxygen).