which mixture will not yield hydrogen gas. A) Sodium and water B) calcium and wa
ID: 1019443 • Letter: W
Question
which mixture will not yield hydrogen gas. A) Sodium and water B) calcium and water C) zinc and hydrochloric acid D) zinc and concetrated Nitric acid E) Steam and red hot iron Please provide explanations. which mixture will not yield hydrogen gas. A) Sodium and water B) calcium and water C) zinc and hydrochloric acid D) zinc and concetrated Nitric acid E) Steam and red hot iron Please provide explanations. which mixture will not yield hydrogen gas. A) Sodium and water B) calcium and water C) zinc and hydrochloric acid D) zinc and concetrated Nitric acid E) Steam and red hot iron Please provide explanations.Explanation / Answer
A) 2Na + 2H2O ------ 2NaOH + H2
B) Ca + 2H2O-------- 2Ca(OH)2 + H2
C) Zn + 2HCl ------ZnCl2 + H2
D) Zn + 4HNO3 ------ 2Zn(NO3)2 + 2NO2 + H2O
E) 3Fe + 4H2O ----- Fe3O4 + 4H2
Therefore only the reaction of zinc with conc nitric acid will not yield hydrogen. Instead the recation will proceed with the formation of zinc nitrate and a reddish brown nitrogen dioxide gas.
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