Across
- 7. elements are found on this
- 12. absorbs heat
- 13. the nut come of a chemical reaction
- 15. on the right side of the periodic table
- 16. has to have two nonmetal
- 19. also known as atomic number
- 20. may change color, produce odor, or release gas.
Down
- 1. releases heat
- 2. H2O->H2+O2
- 3. KBr+AgNO3->AgBr+KNO3
- 4. Fe+CuCl->Cu+FeCl
- 5. mass / volume
- 6. CxHy+O2->CO2+H2O+fire
- 8. a subatomic particle in a atom with a negative charge
- 9. the starting materials in a chemical reaction that undergoes a chemical change to form a product
- 10. has to have a metal and nonmetal
- 11. can often be undone
- 14. the subatomic particle that circles the outside of the nucleus with a negative charge
- 17. A+B->A-B
- 18. on the left side of the periodic table