Flashcards
Acids, Alkalis and The PH Scale
Flashcards do conjunto (9)
- 1List 8 properties of Acids1.Have a low PH (turn PH paper red/orange)
2. Sour
3. Can Kill Cells
4. Corrosive
5. Make Hydrogen
6.Make Carbon dioxide
7. Have hydrogen in them and acid in their name.
8. Neutralised by bases - 2List 6 properties of Alkalis1. High PH (turn filter paper blue/purple)
2. Soapy
3.Corrosive
4. Neutralise acids to make salt
5. Soluble bases
6. Bases are Metal oxides, hydroxides and carbonates - 3Where is...on the PH Scale? 1. Acid 2.Neutral 3. Alkali1. Lower than 7
2. 7
3. Higher than 7 - 4How would you measure the pH of an unknown liquid.Indicator- Mixture of dyes which changes colour depending on whether it is an acid or alkali. (ie. universal indicator, litmus paper)
- 5How can indigestion be helped using neutralisation?Indigestion is caused by too much hydrochloric acid in the stomach.The excess acid must be neutralised by a medium strength base.
- 6Acid + Base=A Salt + Water
- 7What happens to a crop if it is grown in the wrong pH?Poor growth. Liming the soil neutralises the acid
- 8Carbon Dioxide + Water=Carbonic Acid
- 9What does acid rain do you metal?Acid rain is acidic because of Co2 in the air. It corrodes the metal with devastating effects.
Informações
- Descrição
- FlashCards sobre Acids, Alkalis and The PH Scale, criado por jennifersnowbell em 01-04-2014.
- Criado por
- jennifersnowbell
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