Across
- 1. cloudy mixture that cannot be separated
- 2. solids at a room temperature
- 3. pounded or rolled into sheets
- 6. gas to liquid.
- 8. stands for workplace Hazardous Materials Information System
- 11. liquid to gas
- 13. can be in between metals and non-metals
- 15. an element is defined by the number of protonsit has.
- 17. a substance that reacts with another substance
- 18. most reactive non-metal
- 19. most stable and unreactive
- 21. chemical combination of two or more elements
- 22. characteristics that can be used to describe a substance
Down
- 1. comes from a Greek word Khemeia , meaning juice of plant.
- 4. metal + non metal, high melting point
- 5. when 2 non-metals combine
- 7. cloudy mixture that can be separated.
- 9. anything that has mass occupies space.
- 10. made up of two or more substances combined together
- 11. substance made up of only one type of atom.
- 12. the average mass of an element in atomic mass units.
- 14. mixture of two or more pure substances that looks like one substance
- 15. most reactive, especially in air and water
- 16. a chemical change, which absorbs heat energy
- 20. a new substance produced in a chemical reaction between reactants