Across
- 1. a term that means potential for hydrogen
- 3. the substances you start with in a chemical reaction
- 6. when heat energy is absorbed during a chemical reaction TWO WORDS
- 8. molecules arranged in ling chains of lots of repeating small molecules
- 9. a reaction that doesn't change the molecules of a substance but changes how the substance looks and sometimes its state TWO WORDS
- 11. a substance that speeds up a chemical reaction without being used up in the process
- 12. solids that have a regular, repeating arrangement of atoms
- 13. when two or more chemical substances interact with each other and change into different chemical substances TWO WORDS
Down
- 1. a type of polymer that is hard to break and can be recycled
- 2. the chemical opposite of an acid
- 4. when heat energy is released during a chemical reaction TWO WORDS
- 5. valuable crystals often used to make jewelry
- 7. a base that works against the acid upsetting your stomach
- 10. a substance that tastes sour, conducts electricity, ruins metals and donates hydrogen ions