Question

Define the following terms correctly.

1. Reactants-
2. Products-
3. Anion-
4. Cation-
5. Exothermic Reaction-
6. Endothermic Reaction-

Answer 1

1) The substances present before the reaction has occurred.

2) The substances formed after the reaction has occurred.

3) A negatively charged ion, typically non-metal, that gains electrons to become stable.

4) A positively charged ion, typically metal, that losses electrons to become stable.

5) A chemical reaction in which the reactants absorb heat energy from the surroundings to form products.

6) A chemical reaction in which the reactants release heat energy into the surroundings to form products.