Across
- 2. acid Acid found in vinegar
- 4. test Test used to detect acids and bases
- 7. A uniform mixture of two or more substances
- 10. Final answer
- 13. reaction Change that produces new substances
- 14. energy Energy stored in chemical bonds
- 16. Color of universal indicator in neutral solution
- 17. Gas humans breathe in that plants release
- 19. Process where a solid changes directly to gas
- 20. Smallest unit of matter
- 21. dioxide Gas that makes fizzy drinks bubble
- 22. Gas used in balloons because it’s lighter than air
Down
- 1. Process that separates liquids by boiling points
- 3. Substance that speeds up a reaction but isn’t used up
- 5. Scientist who created the periodic table
- 6. Two or more atoms bonded together
- 8. Opposite of an acid
- 9. Element with the chemical symbol Na
- 11. Element symbol S stands for this
- 12. Metal that is liquid at room temperature
- 15. Metal that rusts easily when exposed to air and water
- 18. cylinder Tool used to measure liquid volume accurately