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Science Test
Chemistry
Question | Answer |
---|---|
Pure substance- | a substance in which there is only one type of particle; includes elements and compounds |
Element- | a pure that cannot be separated or broken down onto simpler substances by physical or chemical means |
Compound- | a pure substance composed of two or more elements that are chemically combined |
Mixture- | a combination of two or more substances that are not chemically combined |
Homogeneous- | mixture a combination of substances in which the appearance and properties are the same throughout. |
Heterogeneous- | a combination of substances in which different components are easily observed |
Physical Properties- | a property of matter that can be observed or measured without changing the identity of the matter |
Malleable- | the ability of a substance to be pounded into thin sheets |
Ductile- | the ability of a substance to be drown or pulled into a wire |
Brittle- | how easily the substance breaks or shatters when force is applied to it |
Solubility- | the ability to dissolve in another substance and the amount of solute needed to make a saturated solution using a given amount of so went at certain temerature |
Hardness- | property of matter that determines how easily the substance can be scratched |
Luster- | the way light is reflected from the surface of the object |
Physical changes- | a change that affects one or more physical properties of a substance and many physical changes are easy to undo |
Chemical properties- | a property of matter that describes a substance based on its ability to change into a new substance with different properties |
Corrosion- | the process of metal; stone or other materials |
Flammability- | the ability to burn |