Print Instructions

NOTE: Only your test content will print.
To preview this answer key, click on the File menu and select Print Preview.




See our guide on How To Change Browser Print Settings to customize headers and footers before printing.

Balancing Chemical Equations

Print Answer Key (Only the test content will print)

Balancing Chemical Equations Answer Key

1. 
Balance the following: [math]H_2(g)+O_2(g)->H_2O(g)[/math]
  • 2H2 + O2 --> 2H2O
2. 
Balance the following: [math]NaClO_3(s)->NaCl(s)+O_2(g)[/math]
  • 2NaClO3 --> 2NaCl + 3O2
3. 
Balance the following: [math]Zn(s)+HCl(aq)->H_2(g)+ZnCl_2(aq)[/math]
  • Zn + 2HCl --> H2 + ZnCl2
4. 
Balance the following: [math]NH_3(g)+O_2(g)->NO(g)+H_2O(aq)[/math]
  • 4NH3 + 5O2 --> 4NO + 6H2O
5. 
Balance the following: [math]C_4H_10(g)+O_2(g)->CO_2(g)+H_2O(g)[/math]
  • 2C4H10 + 13O2 --> 8CO2 + 10H2O
6. 
Balance the following: [math]C_2H_6(g)+O_2(g)->H_2O(g)+CO_2(g)[/math]
  • 2C2H6 + 7O2 --> 6H20 + 4CO2
7. 
Balance the following: [math]Fe(s)+H_2SO_4(aq)->Fe_2(SO_4)_3(aq)+H_2(g)[/math]
  • [math]2Fe(s)+3H_2SO_4(aq)->Fe_2(SO_4)_3(aq)+3H_2(g)[/math]
8. 
Balance the following: [math]SeCl_6(s)+O_2(g)->SeO_2(s)+Cl_2(g)[/math]
  • Correct form of the balanced equation:
    [math]SeCl_6(s)+O_2(g)->SeO_2(s)+3Cl_2(g)[/math]
9. 
Balance the following word equation:
aluminum + oxygen[math]rarr[/math]aluminum oxide
  • Balanced:
    [math] 4Al + 3O_2 rarr 2Al_2O_3[/math]
10. 
Nitrogen dioxide and water vapor are combined to manufacture ammonia with a byproduct of oxygen gas. Write the balanced equation for this reaction.
  • [math]4NO_2 + 6H_2 O --> 4NH_3 + 7O_2[/math]

Become a Help Teaching Pro subscriber to access premium printables

Unlimited premium printables Unlimited online testing Unlimited custom tests

Learn More About Benefits and Options

You need to be a HelpTeaching.com member to access free printables.
Already a member? Log in for access.    |    Go Back To Previous Page