Reaction Types_Y9

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings. Example: Photosynthesis.

Front

What is the word equation for photosynthesis?

Back

carbon dioxide + water → glucose + oxygen

Front

What is the chemical equation for photosynthesis?

Back

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Front

What is an exothermic reaction?

Back

A reaction that releases heat energy. Example: Combustion.

Front

What is the word equation for combustion?

Back

methane + oxygen → carbon dioxide + water

Front

What happens in a combustion reaction?

Back

A substance reacts with oxygen to release energy (heat and light).

Front

What is complete combustion?

Back

Complete combustion produces carbon dioxide and water.

Front

What is incomplete combustion?

Back

Incomplete combustion produces carbon monoxide or soot (carbon) and water.

Front

What is the general equation for complete combustion?

Back

hydrocarbon + oxygen → carbon dioxide + water

Front

What is the general equation for incomplete combustion?

Back

hydrocarbon + oxygen → water + carbon monoxide OR carbon