Sec1 Sci C7c WL Chemical Changes (UK KS3 7E) 23words Core
Terms in this set (24)
A substance that turns litmus red. It has a pH of less than 7.
A substance that has a pH of less than 7
Substance that turns litmus blue. Has a pH of more than 7.
A solution with a pH that is more than 7
A chemical we use to make things taste 'salty'.
A solution that contains a lot of solute dissolved in very little solvent
This means the liquid is mostly water with only a small amount of acid or alkali
The acid in vinegar.
Another word for irritant.
A possible source of danger
They show you with pictures how you could be hurt by the chemicals inside
A common strong acid that is also found in your stomach.
A dye that will change colour in acids and alkalis.
A chemical that can hurt your skin and your eyes.
An indicator which tells you if a substance is acidic or alkaline. If a substance is alkaline it turns blue. If a substance is acidic, it turns red.
Substance that is not an acid or an alkali. Has a pH of 7.
This is what happens when an acid and an alkali are added together in the right amount.
A common acid it is used to make fertilisers to help farmers grow food
A numbered scale from 1-14 showing the strengths of acids and alkalis. Numbers below 7 are acids. Numbers above 7 are alkalis. pH 7 is neutral.
The chance of damage or injury from a hazard
A common acid. Used in car batteries.
A mixture of chemicals which change colour depending on how acidic or alkali a liquid is
A factor in an experiment that can change.
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