What does Acid plus metal give?

Answer 1

Assuming a reactive metal and acid combination are used (that is, ignoring things like passivation layers, oxide shields, etc) then the general reaction in aqueous media is:

For metals producing monovalent cations (eg Na, K, Li etc)

n.M + HnA > n M+ + An- + n/2. H2

For metals producing divalent cations (eg Ca, Mg, Ba)

M + 2/n.HnA > M++ + 2/n.An- + n.H2

So, basically, you get the metal salt + hydrogen

Answer 2

An acid + active metal will result in a salt and hydrogen gas.

The reaction will often give off heat, bubbles and fizz; thus an exothermic reaction.

Example is Magnesium + 2Hydrochloric Acid = Magnesium Chloride2 + Hydrogen2 (g).

Answer 3

Acid + Metal = Salt + Hydrogen

E.g

Al + HCL = Alcl2 + H2

Answer 4

The product is a salt.