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CRAppSciMatterVocab
Question | Answer |
---|---|
has mass and volume | matter |
pure substance made of only one type of atom | element |
pure substance made up of atoms of more than one type of element that have been chemically bonded | compound |
has a fixed composition; will be an element or compound | pure substance |
smallest part of an element that retains all the properties of that element | atom |
physical combination of substances in which each substance retains its own properties, and the properties of the mixture are a combination of the properties of each component | mixture |
mixture in which the components are evenly distributed | homogeneous mixture |
another term for a homogeneous mixture | solution |
mixture in which the components are not evenly distributed | heterogeneous mixture |
can be observed without changing the identity of the substance | physical property |
ratio of an object’s mass to its volume | density |
relates to a substance's ability to undergo a change that transforms its identity into a new substance with new and different properties | chemical property |
change the physical appearance of a substance change a substance’s appearance, but not its identity | physical change |
change in which one or more substance are converted to one or more new substance, with new and different properties | chemical change |
another term for a chemical change | chemical reaction |
change in which energy is put in to make the change happen | endothermic process |
change in which energy is given off as a result of the change | exothermic process |