how much zinc (Zn) should react with excess of dilute hydrochloric(HCl) solution to produce enough hydrogen gas(H2) that completely reacts with oxygen obtained by decomposing 6.125 grams of potassium chlorate (KClO3)
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Answer:
Zn + 2HCl ---> ZnCl2 + H2
so only one zinc atom reacts here
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