- #1
mousechild
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We have been given three balanced equations to write as net ionic equations. Our teacher forgot to teach us this bit and has now left the college. I'm really stuck, any help would be so kindly appreciated TY x
The equations are:
1. Pb(NO3)2 (aq) + 2KCl (aq) = PbCl2(s) + KNO3 (aq)
2. 2HCL(aq) + Ba(OH)2(aq) = BaCl2(aq) + 2H2O(l)
3. NaCl(aq) + AgNO3(aq) = NaNO3(aq) +AgCl(s)
With the first equation I don't think it is balanced, so I tried to firstly balance it by writing:
Pb(NO3)2(aq) + 2KCL(aq) = PbCl2(s) + 2KNO3(aq)
Then I attempted to write it ionically:
[Pb]2+ + 2[NO3]- + [K]+ + [Cl]- = [Pb]+2 + 2[Cl]- + 2[K]+ + 2[NO3]-
for the second one I got as far as writing: 2[H]+ + 2[Cl}- but I am very unsure of how to write Ba(OH)2. Is there 2 lots of Ba and 2 lots of OH? I don't understand why the OH is in brackets. :(
I haven't started trying to figure out the third question yet, I've spent hours trying to work out how you do the first two and I'm getting in a bit of a panic.
If you have been so kind as to take the time to read my problem (I know it's long and I sound like a complete idiot!) then thanks so much, and if you could help me then even more thanks. xx
The equations are:
1. Pb(NO3)2 (aq) + 2KCl (aq) = PbCl2(s) + KNO3 (aq)
2. 2HCL(aq) + Ba(OH)2(aq) = BaCl2(aq) + 2H2O(l)
3. NaCl(aq) + AgNO3(aq) = NaNO3(aq) +AgCl(s)
With the first equation I don't think it is balanced, so I tried to firstly balance it by writing:
Pb(NO3)2(aq) + 2KCL(aq) = PbCl2(s) + 2KNO3(aq)
Then I attempted to write it ionically:
[Pb]2+ + 2[NO3]- + [K]+ + [Cl]- = [Pb]+2 + 2[Cl]- + 2[K]+ + 2[NO3]-
for the second one I got as far as writing: 2[H]+ + 2[Cl}- but I am very unsure of how to write Ba(OH)2. Is there 2 lots of Ba and 2 lots of OH? I don't understand why the OH is in brackets. :(
I haven't started trying to figure out the third question yet, I've spent hours trying to work out how you do the first two and I'm getting in a bit of a panic.
If you have been so kind as to take the time to read my problem (I know it's long and I sound like a complete idiot!) then thanks so much, and if you could help me then even more thanks. xx