topic 2 0.0 / 5 ? Chemistrystates of matter and mixturesGCSEEdexcel Created by: bertie321Created on: 03-01-22 12:41 what do states of matter depend on they depend on the forces between particles 1 of 16 what are the properties of a solid strong forces of attraction between particles, cannot move and they have a fixed position 2 of 16 what are the properties of a liquid there is some forces of attraction between particles, free to move and they don't have a fixed position 3 of 16 what are the properties of a gas no forces forces of attraction between particles, free to move and they don't have a fixed position 4 of 16 what word do you use to describe a state change melting, boiling, subliming, condensing and freezing 5 of 16 what is a chemical change it happens during chemical reactions, when bonds between atoms break and atoms change place 6 of 16 what is a pure substance it is when a element has no other substances in it. 7 of 16 how do you test purity by using melting points 8 of 16 what is distillation it separates out solutions 9 of 16 what is fractional distillation it is used to separate a mixture of liquids 10 of 16 what is filtration used for to seperate an insoluable solid from a liquid 11 of 16 what is crystallisation used for to separate a soluble solid from a solution 12 of 16 what is a mobile phase of chromatography it is where the molecules eg: when is aliquid of gas 13 of 16 what is a stationary phase of chromatography it is where the molecules cannot move eg: a solid or a very thick liquid 14 of 16 how do you calculate the rf value distance travelled by substance/ distance travelled by the solvent 15 of 16 what stages do you use to purify water filtration, sedimentation and chlorination 16 of 16
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