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phs-sci chapter 2
Term | Definition |
---|---|
physical property | any characteristic or property that can be observed on a object without the composition being changed |
viscosity | the tendency of a liquid to keep from flowing |
pure substance | matter that always as exactly the same composition |
atom | smallest particle of a element |
element | a substance that can not be broken down into simpler substances |
compound | a substance mad up of two or more simpler substances and can be broken down |
heterogeneous mixture | a type of mixture in which the parts of the mixture are noticeably different with one another |
solution | a mixture that forms when substances dissolve and form a homogeneous mixture. |
suspension | when a heterogeneous mixture separates into layers over time |
colloid | a mixture that contains some particles that are varying in size and suspension. |
homogeneous mixture | a type of mixture in which the parts of the mixture are the same chemically |
conductivity | the ability for electricity to be carried through particles |
malleability | the ability for a solid to be harmed without shattering |
melting point | the point at which a solid can melt into a liquid and not be turned into a gas |
boiling point | the point at which a liquid can be transformed into a gaseous state |
filtration | the process that separates particles based on size |
distilation | the process that separates the substances in a solution based on boiling point |
physical change | a change that occurs when the properties of a material change but the material does not change |
chemical property | a property that causes change in the composition of matter |
flammability | a materials ability to burn in the presence of oxygen |
reactivity | the property that describes how readily that a substance chemically combines chemically with other substances |
chemical change | a change that occurs when a substance reacts and forms one or more new substances |
precipitate | a solid that forms and separates from a liquid mixture |