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15 November, 14:46

Which pair of substances would most likely result in the production of a gas when reacting with an acid?

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  1. 15 November, 17:44
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    The choices can be found elsewhere and as follows:

    litmus and phenolphthalein

    soluble metal salt and carbon dioxide

    acids and water

    hydrogen ions and soaps

    I think the correct answer is the second option. The pair of substances that would most likely result in the production of a gas when reacting with an acid would be soluble metal salt and carbon dioxide.
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