Chem Ch. 2 VOCAB Word Scramble
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| Question | Answer |
| law of conservation of mass | mass can be neither created nor destroyed in an ordinary chemical or physical process |
| matter | anything that has mass and takes up space |
| mass | the amount of matter an object contains |
| substance | matter that has uniform and definite composition |
| physical property | a quality or condition of a substance that can be observed or measured without changing the substance's composition |
| solid | matter that has a definite shape and volume |
| liquid | matter that flows, has a fixed volume, and takes the shape of its container |
| gas | matter that takes both the shape and volume of is container |
| vapor | the gaseous state of a substance that is generally a liquid or solid at room temperature |
| physical change | a change that alters a given material without changing its composition |
| mixture | physical blend of two or more substances |
| heterogeneous mixture | a mixture that is not uniform in composition; you can tell there is multiple things in the mixture |
| homogeneous mixture | a mixture that has a completely uniform composition; you cannot tell there is multiple things in the mixture |
| solutions | a homogeneous mixture |
| phase | any part of a system with uniform composition and properties |
| distillation | a purification process in which a liquid is evaporated and then condensed again to a liquid; |
| elements | a substance that cannot be changed into simpler substances under normal lab conditions |
| compounds | a substance that can be separated into simpler substances only by chemical reactions |
| chemical symbol | a one or two letter representation of an element |
| chemical reaction | the changing of substances to other substances by the breaking of bonds in reactants and the formation of bonds in products |
| reactants | a starting substance in a chemical reaction |
| products | a substance formed in a chemical reaction |
| chemical property | the ability of a substance to undergo chemical reactions and to form now substances |
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aricestrand1
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