Unit 1: Chemistry Intro

2. Burning paper, iron rusting, digesting sugar
6. measured in grams
7. another term for homogeneous mixture
9. everything that has mass and takes up space
11. gas to liquid
12. a ratio of mass divided by volume
13. liquid to gas
16. two or more elements chemically combined in a fixed ratio
17. The chemical formula of a compound will show two or more ________ letters.
19. Mrs. Torres' favorite compound.
20. abbreviation for milliliters
21. When separating a mixture of rocks and water, the rocks will stay in the _______ and the water will go through it.
22. the density of water

1. ex. sand and water; a mixture that doesn't dissolve
3. ex. salt and water; a mixture that dissolves
4. simplest substance that cannot be broken down
5. two or more substances physically combined
8. uses the difference in boiling points in substances in order to separate them
10. evaporating alcohol, freezing water, melting sugar
14. the space a sample occupies
15. abbreviation used for "aqueous" (dissolved in water)
18. A ____ substance can be classified as an element or compound.