This chemical reaction is very dangerous.

This chemical reacts when heat is added.

The sourness of this lemon is very strong.

Oxidation is a type of chemical reaction where a substance reacts with oxygen to form an oxide.

This compound turns red when it oxidizes.

This lemon is sour.

Please add a little vinegar to this salad.

The basicity of this compound is very high.

This species of snail is hermaphroditic, capable of self-fertilization.

He publicly acknowledged that he is bisexual.