Free Printable Chemical Equations TEST

1.

All of these are example of elements except-

a)

$Cu$

b)

$KI$

c)

$He$

d)

$H$

2.

A chemical formula shows all of the following except-

a)

the number of atoms of each element

b)

the chemical symbols of elements

c)

the elements found in a compound

d)

the number of protons in a nucleus

3.

All of these are examples of the chemical formula of a compound except-

a)

$H_2$

b)

$MgO$

c)

$SiO_2$

d)

$H_2O$

4.

What is the appropriate subscript for oxygen in the models shown?

a)

1

b)

2

c)

3

d)

4

5.

How many total atoms are in the compound $CuSO_4$

a)

3

b)

4

c)

5

d)

6

6.

How many elements are in $2H_2SO_4$

a)

2

b)

3

c)

7

d)

14

7.

$2Li_3PO_4$

How many molecules are found in the formula

a)

2

b)

3

c)

4

d)

16

8.

How many atoms of carbon are found in one molecule of glucose? $C_6H_{12}O_6$

a)

3

b)

6

c)

12

d)

24

9.

In this reaction, what are the reactants?

a)

Sodium, carbon, and Iodine

b)

Sodium and chlorine

c)

Sodium chloride

d)

Sodium, chlorine, and sodium chloride

10.

In the previous reaction, what is the product?

( 2Na + Cl₂ --> 2NaCl)

a)

$Na,C\ and\ I$

b)

$Na,\ Cl$

c)

$NaCl$

d)

$Na,\ Cl,\ and\ NaCl$

11.

In this chemical equation, the elements are rearranged to form new products. Which of the following compounds should be placed in the box?

a)

$CO_2$

b)

$H_2O$

c)

$Co$

d)

$CaCl_2$

12.

Which two compounds contain the same total number of atoms?

a)

$C_3H_8\ \ and\ \ C_2H_6$

b)

$NO_2\ \ and\ \ KCl$

c)

$2Li_2S\ \ \ and\ \ \ BeCl_2$

d)

$2CO\ \ \ \ and\ \ \ \ C_2O_2$

13.

Which of the following is an example of a chemical change?

a)

water evaporating

b)

tearing paper into smaller pieces

c)

combining baking soda and vinegar

d)

mixing water and sugar

14.

All of the following are indicators of a chemical change except-

a)

formation of a gas

b)

change in temperature

c)

change in state of matter

d)

formation of a precipitate

15.

Chemical equations tell a story of a chemical change where the elements are rearranged, forming new substances. All of the following chemical equations indicate a chemical reaction except-

a)

$Fe\ +\ Cl_2\ \ \rightarrow\ \ FeCl_2$

b)

$3Mg\ +\ N_2\ \ \rightarrow\ \ Mg_3N_2$

c)

$2Ag\ +\ H_2S\ \ \rightarrow\ \ HO_2\ +\ Pb$

d)

$4\ Fe\ +\ 3O_2\ \ \rightarrow\ \ 2Fe_2O_3$

Chemical Equations TEST

Total questions: 15

Worksheet time: 8mins

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