Across
- 2. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
- 3. The reacting substances in a chemical reaction.
- 4. A measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration.
- 8. The minimum energy required in order for a chemical reaction to proceed.
- 10. A reaction between an acid and a base.
Down
- 1. Matter is neither created nor destroyed during a chemical reaction; atoms are merely rearranged, without any apparent loss or gain of mass, to form new molecules.
- 5. One half of an oxidation–reduction reaction, represented by an equation showing electrons as either reactants or products.
- 6. Description of a chemical reaction in which there is a net release of energy.
- 7. A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.
- 9. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.