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Chemical Equations

Total questions: 31

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

What do we call the chemicals on the left side of the equation?



a)

Product

b)

Yields

c)

Reactants

d)

Chemical Equation

2.

What do we call the chemicals on the right side of the equation?

a)

Reactants

b)

Chemical Equation

c)

Yields

d)

Product

3.

What word does the arrow represent?

a)

Product

b)

Chemical Equation

c)

Reactant

d)

Yields

4.

Select all the elements in this chemical equation.

 H2+O2→H2O2H_2+O_2→H_2O_2  

a)

Hydrogen (H)

b)

Oxygen (O)

c)

Helium (He)

d)

Osmium (Os)

5.

Select all the elements in this chemical equation:


C2H6 + O2 → CO2 + H2O

a)

Oxygen (O)

b)

Helium (He)

c)

Carbon (C)

d)

Hydrogen (H)

6.

Is this equation balanced?

C2H6 + O2 → CO2 + H2O

a)

Yes

b)

No

7.

Is this equation balanced?


H2 + O2 → H2O2

a)

Yes

b)

No

8.

Select all the elements in this equation:


N2 + 3H2 → 2NH3

a)

Nitrogen (N)

b)

Hydrogen (H)

c)

Sodium (Na)

d)

Oxygen (O)

9.

Is this equation balanced?


N2 + 3H2 → 2NH3

a)

Yes

b)

No

10.

Select all the elements that are in this equation:


P4O10 + H2O → H3PO4

a)

Phosphorous (P)

b)

Oxygen (O)

c)

Hydrogen (H)

d)

Helium (He)

11.

Is this equation balanced?


P4O10 + H2O → H3PO4

a)

Yes

b)

No

12.

How many atoms of phosphorus (P) are on the reactant (left) side?


P4O10 + H2O → H3PO4

a)

4

b)

10

c)

8

d)

2

13.

Select all the elements in this equation:


6CO2 + 6H2O → C6H12O6 + 6O2

a)

Carbon (C)

b)

Oxygen (O)

c)

Hydrogen (H)

d)

Neon (Ne)

14.

Is this equation balanced?


6CO2 + 6H2O → C6H12O6 + 6O2

a)

Yes

b)

No

15.

How many atoms of carbon (C) are there on the reactant (left) side?


6CO2 + 6H2O → C6H12O6 + 6O2

a)

6

b)

12

c)

18

d)

24

16.

How many atoms of oxygen (O) are on the product (right) side of this equation?


6CO2 + 6H2O → C6H12O6 + 6O2

a)

6

b)

12

c)

18

d)

24

17.

Select all the elements that are in this equation:


SiCl4 + 4H2O → H4SiO4 + 4HCl

a)

Silicon (Si)

b)

Chlorine (Cl)

c)

Hydrogen (H)

d)

Oxygen (O)

18.

Is this equation balanced?


SiCl4 + 4H2O → H4SiO4 + 4HCl

a)

Yes

b)

No

19.

How many atoms of silicon (Si) are on the reactant (left) side of this equation?


SiCl4 + 4H2O → H4SiO4 + 4HCl

a)

1

b)

4

c)

2

d)

8

20.

How many atoms of chlorine (Cl) are on the product (right) side of this equation?


SiCl4 + 4H2O → H4SiO4 + 4HCl

a)

1

b)

4

c)

2

d)

8

21.

Select all the elements in this equation:


Al + HCl → AlCl3 + H2

a)

Aluminum (Al)

b)

Hydrogen (H)

c)

Chlorine (Cl)

d)

Carbon (C)

22.

Is this equation balanced?


Al + HCl → AlCl3 + H2

a)

Yes

b)

No

23.

Select all the elements in this equation:


4KClO3 → 3KClO4 + KCl

a)

Potassium (K)

b)

Chlorine (Cl)

c)

Oxygen (O)

d)

Krypton (Kr)

24.

Is this equation balanced?


4KClO3 → 3KClO4 + KCl

a)

Yes

b)

No

25.

How many atoms of potassium (K) are on the reactant (left) side of this equation?


4KClO3 → 3KClO4 + KCl

a)

4

b)

3

c)

12

d)

1

26.

How many atoms of Oxygen (O) are on the product (right) side of this equation?


4KClO3 → 3KClO4 + KCl

a)

3

b)

4

c)

12

d)

1

27.

Select all the elements in this equation:


Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O

a)

Barium (Ba)

b)

Oxygen (O)

c)

Hydrogen (H)

d)

Phosphorous (Ph)

28.

Is this equation balanced?


Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O

a)

Yes

b)

No

29.

How many atoms of barium (Ba) are on the reactant (left) side of the equation?


Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O

a)

1

b)

2

c)

3

d)

4

30.

How many elements of phosphorous (P) are on the product (right) side of the equation?


Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O

a)

1

b)

3

c)

4

d)

2

31.

How many elements of hydrogen (H) are on the product (right) side of the equation?


Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O

a)

1

b)

4

c)

2

d)

5

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