| A | B |
|---|
| 3 states of matter | solid, liquid, gas |
| gas - attraction of molecules | weak - far apart |
| liquid - attraction of molecules | medium |
| solid - attraction of molecules | strong - very close together |
| gas - volume | not definite - depends on the size of the container |
| liquid - volume | definite volume (stays the same) |
| solide - volume | definite volume( stays the same) |
| atom | the smallest amount of an element |
| molecule | the smallest amount of a compound |
| electrolysis | using electricity to separate water into its elements |
| elements that make up water | hydrogen (2) and oxygen(1) |
| test for oxygen | glowing splint - it reignites |
| test for hydrogen | lit splint - loud "pop" |
| physical properties | properties you can observe |
| examples of physical properties | color, size, texture |
| chemical properties | properties that describe how a substance changes into a new substance |
| compound | 2 or more elements chemically combined |
| formula | a short way of writing a COMPOUND |
| symbol | a short way of writing an ELEMENT |
| characteristics of compounds | USE YOUR NOTES!!! |
| FORMULAS | USE YOUR HW WORKSHEET |
