Examples of 10 Balanced Chemical Equations

See How To Write Balanced Equations

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Helmenstine, Anne Marie, Ph.D. "Examples of 10 Balanced Chemical Equations." ThoughtCo, Apr. 9, 2017, thoughtco.com/examples-of-10-balanced-chemical-equations-604027. Helmenstine, Anne Marie, Ph.D. (2017, April 9). Examples of 10 Balanced Chemical Equations. Retrieved from https://www.thoughtco.com/examples-of-10-balanced-chemical-equations-604027 Helmenstine, Anne Marie, Ph.D. "Examples of 10 Balanced Chemical Equations." ThoughtCo. https://www.thoughtco.com/examples-of-10-balanced-chemical-equations-604027 (accessed October 22, 2017).
Chemical equations
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Writing balanced chemical equations is essential for chemistry class. Here are examples of balanced equations you can review or use for homework. Note that if you have "1" of something, it does not get a coefficient or subscript. The word equations for a few of these reactions have been provided, though most likely you'll be asked to provide only the standard chemical equations.

6 CO2 + 6 H2O → C6H12O6 + 6 O2 (balanced equation for photosynthesis)
6 carbon dioxide + 6 water yields 1 glucose + 6 oxygen

2 AgI + Na2S → Ag2S + 2 NaI
2 silver iodide + 1 sodium sulfide yields 1 silver sulfide + 2 sodium iodide

Ba3N2 + 6 H2O → 3 Ba(OH)2 + 2 NH3

3 CaCl2 + 2 Na3PO4 → Ca3(PO4)2 + 6 NaCl

4 FeS + 7 O2 → 2 Fe2O3 + 4 SO2

PCl5 + 4 H2O → H3PO4 + 5 HCl

2 As + 6 NaOH → 2 Na3AsO3 + 3 H2

3 Hg(OH)2 + 2 H3PO4 → Hg3(PO4)2 + 6 H2O

12 HClO4 + P4O10 → 4 H3PO4 + 6 Cl2O7

8 CO + 17 H2 → C8H18 + 8 H2O

10 KClO3 + 3 P4 → 3 P4O10 + 10 KCl

SnO2 + 2 H2 → Sn + 2 H2O

3 KOH + H3PO4 → K3PO4 + 3 H2O

2 KNO3 + H2CO3 → K2CO3 + 2 HNO3

Na3PO4 + 3 HCl → 3 NaCl + H3PO4

TiCl4 + 2 H2O → TiO2 + 4 HCl

C2H6O + 3 O2 → 2 CO2 + 3 H2O

2 Fe + 6 HC2H3O2 → 2 Fe(C2H3O2)3 + 3 H2

4 NH3 + 5 O2 → 4 NO + 6 H2O

B2Br6 + 6 HNO3 → 2 B(NO3)3 + 6 HBr

4 NH4OH + KAl(SO4)2·12H2O → Al(OH)3 + 2 (NH4)2SO4 + KOH + 12 H2O

Check Equations To Make Sure They Are Balanced

  • When you balance a chemical equation, it's always a good idea to check the final equation to make sure it works out. Perform the following check:
  • Add up the numbers of each type of atom. The total number of atoms in a balanced equation will be the same on both sides of the equation. The Law of Conservation of Mass states the mass is the same before and after a chemical reaction.
  • Make sure you accounted for all types of atoms. Elements present on one side of the equation need to be present on the other side of the equation.
  • Make sure you can't factor out the coefficients. For example, if you could divide all of the coefficients on both sides of the equation by 2, then you may have a balanced equation, but not the simplest balanced equation.
Format
mla apa chicago
Your Citation
Helmenstine, Anne Marie, Ph.D. "Examples of 10 Balanced Chemical Equations." ThoughtCo, Apr. 9, 2017, thoughtco.com/examples-of-10-balanced-chemical-equations-604027. Helmenstine, Anne Marie, Ph.D. (2017, April 9). Examples of 10 Balanced Chemical Equations. Retrieved from https://www.thoughtco.com/examples-of-10-balanced-chemical-equations-604027 Helmenstine, Anne Marie, Ph.D. "Examples of 10 Balanced Chemical Equations." ThoughtCo. https://www.thoughtco.com/examples-of-10-balanced-chemical-equations-604027 (accessed October 22, 2017).