Question

name per date

1. $\ce{c3h8 + o2 -> co2 + h2o}$
2. $\ce{fe2o3 + co -> fe + co2}$
3. $\ce{nahco3 + h2so4 -> h2o + na2so4 + co2}$
4. $\ce{c8h18 + o2 -> co2 + h2o}$
5. $\ce{c6h12o6 + o2 -> co2 + h2o}$
6. $\ce{nh3 + o2 -> no + h2o}$
7. $\ce{c2h4o2 + o2 -> co2 + h2o}$
8. $\ce{h2so4 + b(oh)3 -> b2(so4)3 + h2o}$
9. $\ce{ch4 + cl2 -> chcl3 + hcl}$
10. $\ce{zns + o2 -> zno + so2}$
11. $\ce{c6h6 + o2 -> co2 + h2o}$

Explanation:

Step1: Balance eq.20 (C₃H₈ + O₂)

Balance C: $3\text{C}_3\text{H}_8 + \text{O}_2
ightarrow 3\text{CO}_2 + \text{H}_2\text{O}$
Balance H: $\text{C}_3\text{H}_8 + \text{O}_2
ightarrow 3\text{CO}_2 + 4\text{H}_2\text{O}$
Balance O: $\text{C}_3\text{H}_8 + 5\text{O}_2
ightarrow 3\text{CO}_2 + 4\text{H}_2\text{O}$

Step2: Balance eq.21 (Fe₂O₃ + CO)

Balance Fe: $\text{Fe}_2\text{O}_3 + \text{CO}
ightarrow 2\text{Fe} + \text{CO}_2$
Balance C/O: $\text{Fe}_2\text{O}_3 + 3\text{CO}
ightarrow 2\text{Fe} + 3\text{CO}_2$

Step3: Balance eq.22 (NaHCO₃ + H₂SO₄)

Balance Na: $2\text{NaHCO}_3 + \text{H}_2\text{SO}_4
ightarrow \text{H}_2\text{O} + \text{Na}_2\text{SO}_4 + \text{CO}_2$
Balance C/O/H: $2\text{NaHCO}_3 + \text{H}_2\text{SO}_4
ightarrow 2\text{H}_2\text{O} + \text{Na}_2\text{SO}_4 + 2\text{CO}_2$

Step4: Balance eq.23 (C₈H₁₈ + O₂)

Balance C: $\text{C}_8\text{H}_{18} + \text{O}_2
ightarrow 8\text{CO}_2 + \text{H}_2\text{O}$
Balance H: $\text{C}_8\text{H}_{18} + \text{O}_2
ightarrow 8\text{CO}_2 + 9\text{H}_2\text{O}$
Balance O: $2\text{C}_8\text{H}_{18} + 25\text{O}_2
ightarrow 16\text{CO}_2 + 18\text{H}_2\text{O}$

Step5: Balance eq.24 (C₆H₁₂O₆ + O₂)

Balance C: $\text{C}_6\text{H}_{12}\text{O}_6 + \text{O}_2
ightarrow 6\text{CO}_2 + \text{H}_2\text{O}$
Balance H: $\text{C}_6\text{H}_{12}\text{O}_6 + \text{O}_2
ightarrow 6\text{CO}_2 + 6\text{H}_2\text{O}$
Balance O: $\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2
ightarrow 6\text{CO}_2 + 6\text{H}_2\text{O}$

Step6: Balance eq.25 (NH₃ + O₂)

Balance N: $4\text{NH}_3 + \text{O}_2
ightarrow 4\text{NO} + \text{H}_2\text{O}$
Balance H: $4\text{NH}_3 + \text{O}_2
ightarrow 4\text{NO} + 6\text{H}_2\text{O}$
Balance O: $4\text{NH}_3 + 5\text{O}_2
ightarrow 4\text{NO} + 6\text{H}_2\text{O}$

Step7: Balance eq.26 (C₂H₄O₂ + O₂)

Balance C: $\text{C}_2\text{H}_4\text{O}_2 + \text{O}_2
ightarrow 2\text{CO}_2 + \text{H}_2\text{O}$
Balance H: $\text{C}_2\text{H}_4\text{O}_2 + \text{O}_2
ightarrow 2\text{CO}_2 + 2\text{H}_2\text{O}$
Balance O: $\text{C}_2\text{H}_4\text{O}_2 + 2\text{O}_2
ightarrow 2\text{CO}_2 + 2\text{H}_2\text{O}$

Step8: Balance eq.27 (H₂SO₄ + B(OH)₃)

Balance B: $\text{H}_2\text{SO}_4 + 2\text{B(OH)}_3
ightarrow \text{B}_2(\text{SO}_4)_3 + \text{H}_2\text{O}$
Balance SO₄: $3\text{H}_2\text{SO}_4 + 2\text{B(OH)}_3
ightarrow \text{B}_2(\text{SO}_4)_3 + \text{H}_2\text{O}$
Balance H/O: $3\text{H}_2\text{SO}_4 + 2\text{B(OH)}_3
ightarrow \text{B}_2(\text{SO}_4)_3 + 6\text{H}_2\text{O}$

Step9: Balance eq.28 (CH₄ + Cl₂)

Balance C: $\text{CH}_4 + \text{Cl}_2
ightarrow \text{CHCl}_3 + \text{HCl}$
Balance H/Cl: $\text{CH}_4 + 3\text{Cl}_2
ightarrow \text{CHCl}_3 + 3\text{HCl}$

Step10: Balance eq.29 (ZnS + O₂)

Balance Zn/S: $2\text{ZnS} + \text{O}_2
ightarrow 2\text{ZnO} + 2\text{SO}_2$
Balance O: $2\text{ZnS} + 3\text{O}_2
ightarrow 2\text{ZnO} + 2\text{SO}_2$

Step11: Balance eq.30 (C₆H₆ + O₂)

Balance C: $2\text{C}_6\text{H}_6 + \text{O}_2
ightarrow 12\text{CO}_2 + \text{H}_2\text{O}$
Balance H: $2\text{C}_6\text{H}_6 + \text{O}_2
ightarrow 12\text{CO}_2 + 6\text{H}_2\text{O}$
Balance O: $2\text{C}_6\text{H}_6 + 15\text{O}_2
ightarrow 12\text{CO}_2 + 6\text{H}_2\text{O}$

Answer:

1. $\text{C}_3\text{H}_8 + 5\text{O}_2

ightarrow 3\text{CO}_2 + 4\text{H}_2\text{O}$

1. $\text{Fe}_2\text{O}_3 + 3\text{CO}

ightarrow 2\text{Fe} + 3\text{CO}_2$

1. $2\text{NaHCO}_3 + \text{H}_2\text{SO}_4

ightarrow 2\text{H}_2\text{O} + \text{Na}_2\text{SO}_4 + 2\text{CO}_2$

1. $2\text{C}_8\text{H}_{18} + 25\text{O}_2

ightarrow 16\text{CO}_2 + 18\text{H}_2\text{O}$

1. $\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2

ightarrow 6\text{CO}_2 + 6\text{H}_2\text{O}$

1. $4\text{NH}_3 + 5\text{O}_2

ightarrow 4\text{NO} + 6\text{H}_2\text{O}$

1. $\text{C}_2\text{H}_4\text{O}_2 + 2\text{O}_2

ightarrow 2\text{CO}_2 + 2\text{H}_2\text{O}$

1. $3\text{H}_2\text{SO}_4 + 2\text{B(OH)}_3

ightarrow \text{B}_2(\text{SO}_4)_3 + 6\text{H}_2\text{O}$

1. $\text{CH}_4 + 3\text{Cl}_2

ightarrow \text{CHCl}_3 + 3\text{HCl}$

1. $2\text{ZnS} + 3\text{O}_2

ightarrow 2\text{ZnO} + 2\text{SO}_2$

1. $2\text{C}_6\text{H}_6 + 15\text{O}_2

ightarrow 12\text{CO}_2 + 6\text{H}_2\text{O}$