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Chemistry
mrmeadrevision
Question | Answer |
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How are the particles of a solid, liquid and gas arranged? | solid- regular, close together and they vibrate about fixed positions, liquid- random, close together and move around each other, gas- random ,far apart and fast in all directions. |
What is sublimation? | Solid to Gas |
What is deposition? | Gas to Solid |
Which theory describes the arrangement and movement of particles in solids, liquids and gases? | Kinetic Theory |
Name 3 States Of Matter? | Solid, Liquid and Gas |
What is the chemical definition of purity? | Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). |
what is crystallisation? | Crystallisation is a separation technique that is used to separate. |
What is filtration? | the action or process of filtering something. |
What is distillation? | the action of purifying a liquid by a process of heating and cooling. |
What is Chromatography | a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates. |
What is fractional distillation? | Fractional distillation is the separation of a mixture into its component parts, or fractions, separating chemical compounds by their boiling point by heating them to a temperature at which one or more fractions of the compound will vaporize. |
Pure water can be separated from inky water by simple distillation because: | Water evaporates leaving the ink particles behind. |
What is the correct order for obtaining salt from a mixture of sand and salt? | Dissolving in water - filtration - evaporation |