Worksheet to teach balancing equations Name

Worksheet to teach balancing equations

Name __________________

Directions: 1. Start Internet Explorer or Netscape and go to 2. Click `Directions'. Read and understand the directions. 3. Click `OK'. 4. Click on `Start Game' 5. Try entering some numbers in the text boxes in front of each molecule. What happens? 6. If you forget the directions, click on the `How to Play the Game' link. Click `OK' when you finish reading them to return to the game. 7. When you think you have typed the right numbers in all the boxes, click the `Balanced' button. 8. If you didn't get it right, try again. 9. If you did get it right, then fill in the correct answers on this worksheet for #1. 10. Repeat steps 7-9 for the other 10 questions. 11. Now do the two problems on the back of this worksheet. You can draw the molecules just like the program did to figure out the answer.

Questions Fill in the blanks below as you go though the game. This is so I have a record that you did your assignment.

1. __1___ Fe + __1___ S __1___ FeS

2. __1___ H2 + __1___ Cl2 __2___ HCl

3. __2___ Mg + __1___ O2 __2___ MgO

4. __1___ O2 + __2___ H2 __2___ H2O

5. __2___ HgO __2___ Hg + __1___ O2

6. __1___ Ca + __2___ H2O __1__ Ca(OH)2 + __1__ H2 7. __1___ CH4 + __2___ O2 ___1__ CO2 + __2___ H2O

8. __1___ Na2O2 + __1___ H2SO4 ___1__ Na2SO4 + __1___ H2O2

9. __1___ N2 + ___3__ H2 ___2__ NH3

10. __4___ Al + __3___ O2 __2___ Al2O3

11. __4___ KMnO4 __2___ K2O + __4___ MnO + __5___ O2

Name: ___Answer Key____ 8th

Balance the following chemical equations

1. 2 K + 2 H2O 2 KOH +

H2

Date: ___________________ Balancing Equations Worksheet I

2. 3 MnO2

+ 4 Al 3 Mn + 2 Al2O3

3. 2 Al2O3

4 Al + 3 O2

4. 3 H2 +

P2

2 PH3

5. 4 Fe + 3 O2

2 Fe2O3

6. 2 P + 3 Cl2

2 PCl3

7. 2 Al + Fe2O3 2 Fe + Al2O3

8. 2 Mg

+

O2

2 MgO

9. N2

+

3 H2

2 NH3

10. 2 AgCl

2 Ag

+

Cl2

11. SO2

+

H2O

H2SO3

12. 2 NO2

2 NO

+

O2

13. 2 Na + 2 H2O

2 NaOH + H2

14. 2 HCl + FeS

FeCl2 + H2S

15.

Fe + CuSO4

FeSO4 + Cu

16. 3 Ca(OH)2 + 2 H3PO4

Ca3(PO4)2 + 6 H2O

Worksheet I p. 2

Name: ___Answer Key________________ 8-____

1. 2 NaOH

+

H2SO4

Date: ____________________ Balancing Equations Worksheet II

Na2SO4

+ 2 H2O

2. 2 NaCl + Ca(NO3)2

2 NaNO3

+

CaCl2

3.

CuO

+

H2SO4

CuSO4

+

H2O

4.

CaC2 + 2 H2O

C2H2

+

Ca(OH)2

5.

3 Ca(OH)2 + 2 H3PO4

Ca3(PO4)2 +

6 H2O

6.

SrCO3 + 2 NH4Br

SrBr2 + (NH4)2CO3

7.

C7H16 + 11 O2

7 CO2 + 8 H2O

Worksheet II page 2

8.

2 C4H10 + 13 O2

8 CO2 + 10 H2O

9. Hydrogen plus oxygen yields water 2 H2 + O2 2 H2O

10. Sodium plus water yields sodium hydroxide plus hydrogen 2 Na + 2 H2O 2 Na(OH) + H2

11. Hydrochloric Acid plus Iron Sulfide yields Iron Chloride plus Hydrogen Sulfide 6 HCl + Fe2S3 2 FeCl3 + 3 H2S

12. Aluminum Sulfate plus Calcium Hydroxide yields Aluminum Hydroxide plus Calcium Sulfate Al2(SO4)3 + 3 Ca(OH)2 2 Al(OH)3 + 3 CaSO4

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download