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Chap.-3
Chapter 3
Question | Answer |
---|---|
Matter | the substance that makes up all physical objects |
element | a substence that is at its purest form, it can not be broken down into and smaller components |
compound | 2 or more diffrent elements bonded to gether |
mixture | any 2 things mixted together, not bonded at atomic level |
homogeneous solution | the parts actually mix, you can not see the seperate parts |
heterogeneus solution | the parts mix, but you can see the various parts |
distillation | using diffrent substances diffrent boiling points to concentrate of separate the various parts out of a mixture |
physical changes | changes to the size, shape, or other physical things |
physical properties | the properties of an object, in the physical sense |
chemical changes | changes in the chemical make up |
law of conservation of matter | matter cannot be made or destroyed |