Across
- 7. having nothing else like it
- 8. protons and neutrons make up the __________
- 10. because water is a compound, its compisition does not ____________
- 11. on the left side of the periodic table
- 12. the atoms of some elements exist as __________
- 13. dissolve to form a solution by mixing evenly
- 15. Matter with a composition that is always the same
- 17. A type of substance containing atoms of two or more different elements chemically bonded together
- 18. Anything that has mass and takes up space
- 19. Substance that consists of only one type of matter
- 20. a type of mixture in which the individual substances are not evenly mixed
Down
- 1. the combination of symbols numbers that represents a compound
- 2. matter that can vary in composition
- 3. the oxygen atoms in air usually exist in ________
- 4. on the right side of the periodic table
- 5. between metals and nonmetals on the periodic table
- 6. a type of mixture in which individual substances are evenly
- 9. a compound composed of carbon and oxygen atoms
- 14. a gas that enables fuels to burn
- 16. Building block of matter