Chemistry Crossword

1. A reaction that gives energy out to the surroundings.
6. A measurement for the amount of a substance.
7. ...series. The order of reactivity for several elements.
8. Negative electrode.
10. Gain of oxygen.
11. A reaction that takes in energy from the surroundings.
13. The amount of a substance in a given volume.
16. Dissolved in water.
17. Relative...mass. The ratio of the average mass per atom of an element to 1/12th the mass of an atom of carbon-12.
18. ... energy. The minimum amount of energy required for a reaction to take place.

1. Obtaining a metal from an ore or compound.
2. ...'s constant. Equal to 6.023E34 atoms.
3. Loss of oxygen.
4. Relative...mass. Sum of the masses of elements in a compound.
5. When a more reactive element takes the place of a less reactive element.
9. The process by which an ionic compound is broken down into its elements by using an electrical current.
12. A substance that increases the rate of a reaction without being used up.
14. ...of mass. Most important idea in chemistry.
15. When an acid reacts with a base.
18. Positive electrode.