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ChemKRMS123

QuestionAnswer
Molecules 2 atoms combined
Atom Smallest particle of an element
Element A pure substance that can't be broken
Protons and neutrons inside an atom- holds it together
Compound 2 or more elements that are chemically combined
Chemistry Study of matter, its properties and how it changes
Boiling point The temperature at which a liquid changes to a gas
Melting point The temperature at which a solid changes to a liquid
Physical change To alter the form of a substance, but not its identity
Chemical change When substances combine or break apart to form new substances
Mixtures 2 or more substances that are in the same place but not chemically combined
Pure substances Are made of only one kind of matter and has definate properties
Metalloids Has metal and non-metal properties
Matter What makes up everything in the universe
Created by: KelseyB97