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chemkrms1019
Question | Answer |
---|---|
what is matter | everything |
what is chemistry | the study of matter and its changes |
atomic number | the number of neutrons and protons added together |
elements | pure substances that cant break down any more |
compounds | made of more than one element |
boiling point | a specific temperature a liquid bubbles |
melting point | the point at witch a metal melts from being exposed to a specific temperature |
physical change | when matter changes to a different form |
chemical change | changed to a different substance |
characteristics of matter | hard soft rough smooth round square hot cold |