2 years ago

Which reacts with metals to form H2 gas

1 answer:

5 0

Answer: acid react with metals to form H2.

Explanation: metals which are more electropositve than hydrogen will always displaced hydrogen from acids. The equation below show how hydrogen is displaced from acid

Zn + 2HCl -—> ZnCl2 + H2

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Ppredict the identity of the precipitate in the below reaction:<br><br> BaCl2(aq) + K2SO4(aq) →

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Answer: The precipitate formed is $BaSO_4$

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A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid or precipitated form are represented by (s) after their chemical formulas.

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