acids, bases + salts

charlotte_lucy_9
Mind Map by , created over 6 years ago

Chemistry Mind Map on acids, bases + salts, created by charlotte_lucy_9 on 04/10/2013.

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charlotte_lucy_9
Created by charlotte_lucy_9 over 6 years ago
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acids, bases + salts
1 salts are made when an acid reacts with a base, carbonate or metal
1.1 the name of the salt formed depends on the metal in the base and the acid used
1.1.1 e.g. salts made using hydrochloric acid are called chlorides
2 acids
2.1 substances with a pH of less than 7
2.2 the more strongly acidic the solution, the lower its pH number
2.3 turns blue litmus paper red
2.4 turn universal indicator paper red if they are strongly acidic, or orange or yellow if they are weakly acidic
3 bases
3.1 substances that can react with acids + neutralise them to make a salt + water
3.2 usually metal oxides or metal hydroxides
3.2.1 e.g. copper oxide and sodium hydroxide are bases
4 alkalis
4.1 bases than dissolve in water
4.2 copper oxide is not an alkali because it DOES NOT dissolve in water
4.3 sodium hydroxide is an alkali because it DOES dissolve in water
4.4 pH of more than 7
4.4.1 the stronger the alkali, the higher the pH number
4.5 turn red litmus paper blue
4.6 turn universal indicator paper dark blue or purple
5 neutral solutions
5.1 have a pH of 7
5.2 do not change the colour of litmus paper
5.3 turn universal indicator green
5.4 e.g. water

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