multi-word fill quiz 7Ewf1 on "Acids and alkalis" KS3 science-chemistry

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   1      7      9      acidic      alkaline      colour      dissolved      green      indicator      neutral      neutralisation      pH      purple      red      salt      strong      universal      weak   
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1. Solutions of substances in water are called aqueous solutions. An aqueous solution may be acidic, or neutral. Water itself is .

2. An can be used to show how acidic or alkaline a solution is by the way the changes eg using universal indicator.

3. A neutral solution turns indicator , a very acid solution , and a very alkaline solution .

4. The scale is used to show numerically how acidic or alkaline a solution is. If the pH = the solution is neutral, if the pH is over 7 it is and if it is less than 7 it is .


5. In reactions: acid + alkali ==> solution + water

6a. If a solution has a pH of 6 it is classified as a acid.
6b. If a solution has a pH of 14 it is classified as a alkali.
6c. If a solution has a pH of it is classified as a weak alkali.
6d. If a solution has a pH of it is classified as a strong acid.

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