Question

Balanced equation for the neutralization of these 2
HCl , Ca(OH)2

Answer 1

let's assume that HCl dissociates completely, because it's a strong acid.

the complete ionic equation:

2H^+(aq) + 2Cl^-(aq) + Ca(OH)2(s) -> 2H2O(l) + Ca^2+(aq) + 2Cl^-(aq)

Answer 2

o so is it the same as

Ca(OH)2(s) + 2HCl(aq) --> 2H2O +CaCl2 (aq)

the answer is this
i just don know how the book gets it

Answer 3

@iforgot the book's version is the molecular equation (according to chemistry: the central science). it's the same.

Answer 4

o okies tyvm

Answer 5

here is the net ionic equation, again according to the textbook:

2H^+(aq) + Ca(OH)2(s) -> 2H2O(l) + Ca^2+(aq)

we eliminated the spectator ions.

Answer 6

as @iforgot said, this is the molecular equation:

Ca(OH)2(s) + 2HCl(aq) --> 2H2O(l) +CaCl2 (aq)

i like this version best because we don't have to assume that HCl dissociates completely (even though it usually comes very close to it). but hey, no salt dissociates 100% (and it depends on the concentrations), the "aq" designation seems to suggest that the salt is "dissolved" without forcing us to split the ion-pair apart, so i like it better.

Answer 7

thank you :D