a)Classify aqueous solutions of the following substances according to their pH into three groups: 7, more than 7, less than 7.
(Vinegar, Calcium chloride, Sodium acetate, Common salt, Carbon dioxide, Ammonium hydroxide, Ammonia) pH7 b)What is the name of the electrical instrument that is used to measure pH?
c) What is a universal indicator used for?
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common salt-7 sodium
acetate-less than 7
7 hydrochloric acid-less than 7
7 carbon dioxide-less than 7
potassium bromide-7
calcium hydoxide- more than 7
ammonium hydroxide- less than 7
vinegar- less than 7
sodium carbonate- more than 7
ammonia- 7
sulfur dioxide-less than 7
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