I need someone who is really good at chemistry please!!!!?

Question

anyone know how to do this?
Balance the following chemical equations...( sorry if this is hard to read because of the numbers. The numbers go down you know kind of on the bottom not right next to the equation!
1)HCl+Ca(OH)2 arrow CaCl2+H2O
2)KClO3 arrow KCl +O2
3)K3PO4+HCl arrow KCl+ H3PO4
4) S+O2 arrow SO3
5)Kl+Pb(NO3)2 arrow KNO3 + Pbl2
6)CaSO4+AlBr3 arrow CaBr2+ Al2(SO4)3
7)H2O2 arrow H2O+O2
8)Na+H2O arrow NaOH+H2
9)C2H6+O2 arrow CO2+H2O
ready for the last and hardest one?
10) Mg(NO3)2 +K3PO4 arrow Mg3(PO4)2 +KNO3
Thank you so much for whoever answered,I truly appreciate it!

Answer 1

1) 2 HCl + Ca(OH)2 ---> CaCl2 + 2 H2O
2) 2 KClO3 ----> 2 KCl + 3 O2
3) K3PO4 + 3 HCl ---> 3 KCl + H3PO4
4) 2 S + 3 O2 --> 2 SO3
5) 2 KI + Pb(NO3)2 ---> 2 KNO3 + PbI2
6) 3 CaSO4 + 2 AlBr3 --> 3 CaBr2 + Al2(SO4)3
7) 2 H2O2 --> 2 H2O + O2
8) 2 Na + 2 H2O ---> 2 NaOH + H2
9) 2 C2H6 + 7 O2 ---> 4 CO2 + 6 H2O
10) 3 Mg(NO3)2 + 2 K3PO4 ---> Mg3(PO4)2 + 6 KNO3

Answer 2

I will run the first one for you, and then give you a trick which will always work.
2HCl + Ca(OH)2 -> CaCl2 + H2O
Now, the trick. Assign coefficients to each reactant and product; in the last example:
a Mg(NO3)2 + b K3PO4 -> c Mg3(PO4)2 + d KNO3.
Next, develop equations from each element:
Mg: 3a = c.
N: a = 6d.
K: b = 3d.
P: 2b = c.
O: 6a + 4b = 8c + 3d.
Solve these as a linear system; one coefficient can be chosen arbitrarily, and you should pick one which makes the numbers nice.

Answer 3

1)2HCl+Ca(OH)2 arrow CaCl2+2H2O
2)2KClO3 arrow 2KCl +3O2
3)K3PO4+3HCl arrow 3KCl+ H3PO4
4) 2S+3O2 arrow 2SO3
5)2Kl+Pb(NO3)2 arrow 2KNO3 + Pbl2
6)3CaSO4+2AlBr3 arrow 3CaBr2+ Al2(SO4)3
7)2H2O2 arrow 2H2O+O2
8)2Na+2H2O arrow2 NaOH+H2
9)2C2H6+7O2 arrow 4CO2+6H2O
10) 3Mg(NO3)2 +2K3PO4 arrow Mg3(PO4)2 +6KNO3
The last one is not simple balancing. You will need a method which will list all the reactancts out and list the # of each atom in the reaction. Please pay more attention in class next time. :)

Answer 4

1)2HCl +Ca(OH)2arrowCaCl2+2H2O
2)2KClO3arrow2KCl+3O2
3)K3PO4+3HCLarrow3KCl+H3PO4
4)2S+3O2arrow2SO3
5)2KI+Pb(NO3)2arrow2KNO3+PbI2
6)3CaSO4+2AIBr3arrow3CaBr2+Al2(SO4)3
7)4H2O2arrow4H2O+2O2
8)2Na+2H2Oarrow2NaOH+H2
9)2C2H6+7O2arrow4CO2+6H2O
10)? sorry about #10

Answer 5

Go to totse.com, they are chemistry genious's