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8 Compounds

Compounds and mixtures keywords

QuestionAnswer
The smallest part of an element. atom
Force holding atoms together. bond
A combination of symbols and numbers that shows how many atoms of different kinds are in a particular molecule. chemical formula
Substance that can be split up into simpler substances. compound
A substance that cannot be split up into anything simpler by chemical reactions. element
Two or more atoms joined together. molecule
A compound that includes oxygen. oxide
Break down into simpler parts. decompose
Permanent change. irreversible change
A change where no new substances are formed. physical change
Insoluble solid produced by mixing two solutions. precipitate
New chemical formed in a chemical reaction. product
Two or more different kinds of particles that are not chemically joined to each other. mixture
A substance that does not have anything else in it. pure
Separating dissolved solids from one another. The solids are usually coloured. chromatography
Separating a liquid from a solution by evaporating the liquid and then condensing it. distillation
When a liquid turns into a gas. evaporate
The temperature at which a liquid turns to a gas. boiling point
The temperature at which a liquid turns into a solid. freezing point
The temperature at which a solid turns into a liquid. melting point
Created by: Zigs.uk
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