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Pre-Chemistry
Words that i might wanna know
Question | Answer |
---|---|
Chemical change | change that occurs when a substance reacts and forms one or more new substances |
Physical change | a change that occurs when some properties of a material change, but the substances in the material stay the same |
Condensation | the phase change in which a substance changes from a gas or vapor to a liquid |
Evaporation | the process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point |
Melting point | the temperature at which a substance changes from solid to liquid |
Boiling point | the temperature at which a substance boils |
Sublimation | the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first |
Matter | something that occupies space and has weight |
Solid | the state of matter inn which materials have a definite shape and a definite volume |
Liquid | the state of matter in which a material has a definite volume but not a definite shape |
Gas | the state of matter in which a material has neither a definite shape nor a definite volume |
Plasma | a state of matter in which atoms have been stripped of their electrons |