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20 Cards in this Set
- Front
- Back
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blue litmus turned red =
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acid
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red litmus turned blue =
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alkali
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both, no change =
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neutral
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on the pH scale, 1 is......
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strongly acidic
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on the pH scale, 14 is.....
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strongly alkaline
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on the pH scale, 7 is....
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neutral
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what is neutralisation?
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when you add an acid to an alkaline (or vice versa) to get a pH of 7
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what is the careful addition technique called used in neutralisation?
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titration
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what are the three states of matter?
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Solid, Liquid and Gas
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definition of solid
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particles are very close and have strong bonds. Orderly definite shape and volume
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definition of liquid
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particles are still very close. Random order, no definite shape
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definition of gas
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particles are very far apart. No order, totally random and no shape or volume
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what is diffusion?
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the spreading of gas from a liquid of high concentration to a region of low concentration
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what happens if you increase the temperature of a material?
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the particles will vibrate faster if a solid, and move faster if a liquid/gas
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the more ------------ added to the water, the -------- the temperature
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impurity lower |
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what is fractional distillation?
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the separating of liquids with similar boiling points
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what does chromatography mean?
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coloured writing
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What is the changing from a solid to a gas called? |
Sublimation |
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What is the changing from a solid to a gas called? |
Sublimation |
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What is a gas changing to a solid called? |
Deposition |
