Answered

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Write a balanced chemical reaction for the single displacement reaction: zinc metal is added to an aqueous solution of hydrochloric acid. In the reaction, the zinc replaces the hydrogen in the hydrochloric acid, forming aqueous zinc chloride and hydrogen gas. Remember to balanve the equation and include physical states.

Sagot :

BrotherGokuidn

Answer:

Zn (s) + 2HCl (aq) -> ZnCl2 (aq) +2H (g)

Explanation:

The first information says the following:

Zn2 (s) + HCl (aq)

Now zinc replaces hydrogen and forms zinc chloride and hydrogen gas

Zn2 (s) + HCl (aq) -> ZnCl2 (aq) + H (g) (sine chlorine has a formal charge of -1 and zinc is +2, you would need two chlorine to balance charge)

Now all there's left is to balance:

Zn (s) + 2HCl (aq) -> ZnCl2 (aq) +2H (g)

s = solid

aq = aqueous

g = gas

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