2006-08-28 04:06:11 · 13 answers · asked by crissie15 1 in Science & Mathematics ➔ Chemistry
Typically, Hydrogen gas (H2) is evolved in a metal - acid reaction, but there are cases when this is not true.
Hydrogen gas is evolved when a metal which is higher up on the activity series reacts with a non-oxidizing acid (for example HCl reacting with Mg).
However, when oxidizing acids react with metals, no longer is the activity series such a constraint. Copper metal, which is below Hydrogen on the activity series, will react with oxidizing acids (like HNO3) to produce Cu(NO3)2, and in the process other, gaseous, substances can be formed like NOx gasses.
But I am sure that your question was just asking for the simply answer of Hydrogen gas rather than getting into the more complex, special, cases of other types of acids.
2006-08-28 04:18:39 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
Not every metal reacts with every Acid, for example Sulphuric asid(H2SO4) has no reaction with Lead metal (Pb), But if you react Nitric Acid with Pb, the reaction will be done and Pb(NO3)2, produce and H2 gas evolves.
So as every Acid has H+ base, when react with a Metal, H+ reduce as Hydrogen and H2 gas will be evolved.
2006-08-28 04:27:52 · answer #2 · answered by aahs137 3 · 0⤊ 0⤋
Generally Hydrogen.
2006-08-28 04:20:02 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋
Hydrogen gas is released when metals more active than hydrogen react with metals.(metals placed higher than hydrogen in the electro chemical series)
2006-08-28 04:19:37 · answer #4 · answered by n12aveen 1 · 0⤊ 0⤋
Hydrogen most of the time, but your question is way too general.
2006-08-28 04:55:38 · answer #5 · answered by Scott S 4 · 0⤊ 0⤋
Hydrogen gas (H2)
2006-08-28 05:07:07 · answer #6 · answered by borscht 6 · 0⤊ 0⤋
Hydrogen gas,
Mg + H2SO4 ---> H2 gas + MgSO4
2006-08-28 04:11:19 · answer #7 · answered by science teacher 7 · 1⤊ 0⤋
Hydrogen gas (H2).
2006-08-28 12:19:10 · answer #8 · answered by phatprincess592 2 · 0⤊ 0⤋
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2006-08-28 04:10:23 · answer #9 · answered by Ralfcoder 7 · 1⤊ 1⤋
normally hydrogen.
2006-08-28 06:01:16 · answer #10 · answered by shiara_blade 6 · 0⤊ 0⤋