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Chemistry test one
| Question | Answer |
|---|---|
| Chemistry | the study of anything that has |
| Matter | anything that has mass and volume |
| Mass | the amount of matter an object has |
| volume | amount of space occupied by object |
| Matter can be divided into what two categories? | substances or mixtures |
| physical property | Something you can measure without changing it |
| chemical property | something you can measure only by changing it |
| solids have a | definite shape and volume |
| liquids are | fluid and can form into any container its put in, but has a fixed volume |
| Gas can also | take the shape AND volume of any container they are in. They will completely fill the container. They still have matter but no fixed volume |
| Gas Vs. vapor | Gas is at room temperature vs. dolid/liquid vaporizing at room temp |
| what change is evaporating water? | Physical change |
| physical change | when properties change but not the composition or material |
| mixtures can be broken up into what two groups | homogeneous & heterogeneous |
| filtration | |
| evaporation | |
| distilation | |
| chromatography | |
| substances can be divided into what two compounds | elements and compunds |
| what are elements | |
| what are compounds | |
| chemical change | a change that produces matter with a different composition than the original |