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Identifying Acids and Bases (Grade 7)

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Played 1 %Accuracy 79 Average time 06:45

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Identify acids, bases and indicators

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Philippines

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Identifying Acids and Bases (Grade 7)
 

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Identifying Acids and Bases (Grade 7)Online version

Identify acids, bases and indicators

by Abegail Atienza
1

In chemistry , and are two families of substances . An acid turns paper , and a base turns red litmus paper blue . Common acids include citric acid found in lemons , while bases include soaps . Acids often have a sour taste and react with metals to produce gas . Bases feel slippery and have a bitter taste . The scale helps us identify them : acids usually have a pH below 7 , while bases have a pH above 7 . Both react with indicators to show their identity .

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