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Chemistry
test
1) Matter - | Anything that has mass and takes up space. |
2) Three common states of matter | - Solid - Liquid - Gas |
3) Motion of particles/ Effect on shape and volume | |
3a) Solid | Vibrate in a fixed position/ Definite volume and definite shape. |
3b)Liquid | Particles move passed each other/ definite volume but takes up shape of the container. |
3c) Gas | move independently/ take up shape and volume of container (always fill container) |
4) difference between vapor and a gas | Vapor - is the gasses state of a solid of liquid Gas - normally a gas at room temp. and pressure |
6) Difference between extensive and an intensive physical property | Extensive - depends on amount ex. mass. Intensive - independent of amount ex. density |
8) What is physical change? | A change that alters the appearance but not the composition (cut, melt, dissolve) |
9) what is a phase change? | A transition from one one state to another ex. freeze |
10) what is a chemical change? | When a substance change into a new substance. ex. Burning, rusting. |
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