What gas was produced by the reaction of an acid and a METAL?
What gas was produced by the reaction of an acid and a CARBONATE?
-thanks!
Answer:
Acid + Metal ---> Salt + Hydrogen
e.g.
H2SO4 + Zn ---> ZnSO4 + H2
Acid + carbonate ---> Salt + CarbonDioxide + Water
e.g.
2HCl + MgCO3 ---> MgCl2 + CO2 + H20
carbon dioxide
Acid and metal reaction produce hidrogen gas in most of the cases. There are some metals that are inert to some acids as well, so nothing is produced. according to defiition of acids you have a proton there that can be "changed" into the metal, so hidrgen gas gets released. The rule is that only the more active metals can substitute hidrogen from the acid.
The other rule is that the stronger acid always reacts with the weaker acids salt(in your case the carbonate-that is the salt of H2CO3, that is considered a very weak acid) and you get the weaker acid and the stronger acids salt. would look like this: STRONGACID+SALT1(of the wekaer one) -> WEAK ACID+ SALT2(of the stronger one) or lets take the carbonate example:HA is the stronger acid,MeCO3 is the carbonate,MeA is the salt of the stronger acid
HA+MeCO3-> H2CO3 +MeA
As you might know hidrogen carbonate is a very weak acid, and is willsplit into water and carbon dioxid, and this will be the gas that you see.
Some acids react with some metals and not all acids react with all metals. It all depends on what is reacting with what. However, assuming there is a reaction, the acid will dissolve the metal to produce the metal salt of that acid; at the same time it will produce hydrogen gas. ie 2H+ + M = 2M+ + H2
However, there are some exceptions; if you mix conc nitric acid with copper, you will get clouds of brown nitrogen dioxide gas.
Trevor Crichton - UK
Carbonate is CO3(2-) and will react with acids to give off carbon dioxide (CO2), leaving the acid salt of the original carbonate salt.
Trevor Crichton - UK...
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