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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 |