5442201
Description
Flashcards by Goncalo Tjim, updated more than 1 year ago
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Created by Goncalo Tjim
almost 9 years ago
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| Question | Answer |
| Difference between acid and alkali | 0-6 is acid 7 neutral 8-14 alkali Blue litmus paper turns red if acid(doesn't change with alkaline and neutral conditions) Red litmus paper turns blue is alkaline(does't change if acid or neutral) Yellow/Orange/Red - acid Green - neutral Blue/Purple - alkali |
| How is indigestion caused and how is it neutralised | when the stomach makes too much hydrochloric acid. It can be neutralised by using antacids |
| General equations for neutralisation | |
| Uses of chlorine | kills microorganisms in water supply used to manufacture bleach manufacture plastic such as PVC However it is toxic |
| Chemical test for hydrogen and oxygen | |
| Uses for hydrogen and oxygen | hydrogen used as rocket fuel hydrogen used to fill airships oxygen is given as a supplement in hospitals |
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