I know that calcium is usually in an oxide state (or in a salt compound), but what would happen theoretically? I would think it would give off H2 Gas and CaCl2 salt but I am not 100% sure. Please reply.
2007-02-21 21:11:35 · 3 answers · asked by Philip K 1 in Science & Mathematics ➔ Chemistry
You are correct, but the balanced equation is:
Ca (s) + 2 HCl (aq) --> CaCl2 (aq) + H2 (g)
2007-02-22 06:09:06 · answer #1 · answered by Richard 7 · 11⤊ 0⤋
2 HCl (aq) + Ca(OH)2 (aq) > CaCl2 (aq) + 2 H2O (l) 1- Ones can be omitted. 2- Ca(OH)2 is slightly soluble 3- The 2 representing 2 units of Cl doesn't need brackets as it is only the atomic symbol for an element, whereas for OH it is for a complex ion ( i.e. two chemical symbols) 4- CaCl2 is aq as compunds with Cl−, Br−, I− are soluble (unless combined with Ag+ or Pb2+)
2016-05-23 22:31:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You're right, since Ca is higher than the hydrogen in reactivity it would go like this:
2HCl + 2Ca ---> 2Cacl + H2
2007-02-21 21:23:22 · answer #3 · answered by PI=22/7 1 · 0⤊ 0⤋