I'll do one for you
#11.
SiCl4(l) + H2O(l) → SiO2(s) + HCl(aq)
As it stands, the Si atom balance
For Cl, you have 4 on the left, so you need 4 on the right.
SiCl4(l) + H2O(l) → SiO2(s) + 4HCl(aq)
Now the Cl atoms balance, but the O need some adjustment.
SiCl4(l) + 2H2O(l) → SiO2(s) + 4HCl(aq)
Now we have 2 O's on each side, and the 4 H's also balance out.
Done.
Now you try the rest.
Balancing equations of chemical reactions
If the equation is already balanced, write “The equation is balanced” right under it in order
to get full credit.
Balance the following chemical equations (3 points each):
9. _____ K(s) + _____ Cl2(g) → _____ KCl(s)
10. _____NaBr(aq) + _____ Cl2(g) → _____ NaCl(aq) + _____ Br2(aq)
11. _____ SiCl4(l) + _____ H2O(l) → _____ SiO2(s) + _____ HCl(aq)
12. ______SnO2(s) + ______ H2(g) → ______ Sn(s) + ______ H2O(g)
13. ______CH4(g) + ______ O2(g) → ______ CO2(g) + ______ H2O(g)
14. ______Na2S(aq) + ______ I2(aq) → ______ NaI(aq) + ______ S(s)
15. _____ CO(g) + _____ H2O(g) → _____ CO2(g) + _____ H2(g)
1 answer