Free Printable Chemical Equations Test

1.

Identify the Reactants in this equation.

a)

A

b)

B

2.

Identify the number in blue.

a)

Product

b)

Reactant

c)

Coefficient

d)

Subscript

3.

In what state is this substance?

a)

solid precipitate

b)

dissolved in water

c)

released as a gas

d)

liquid

4.

How many atoms of nitrogen are in the compound shown above?

a)

1

b)

2

c)

3

d)

4

5.

What are the blue numbers called?

a)

oxidation numbers

b)

subscripts

c)

group numbers

d)

product numbers

6.

Is the compound in the pink box a Reactant or a Product?

a)

Reactant

b)

Product

7.

How many atoms of oxygen are represented in the picture?

a)

2

b)

3

c)

5

d)

6

8.

The products of a reaction have the same ________as the reactants.

a)

molecule

b)

atoms

c)

subscripts

d)

coefficients

9.

When balancing this equation, Fe + Cl₂ → FeCl₃, the correct coefficient for Cl₂?

a)

1

b)

2

c)

3

d)

4

10.

Balance this equation, CaCO₃(s) → CaO(s) + CO₂(g)?

a)

3,1,2

b)

1,1,1

c)

1,3,1

d)

2,6,3

11.

Balance this equation, AlCl₃+ NaOH → Al(OH)₃ + NaCl

a)

3,1,3,1

b)

1,3,3,1

c)

1,1,1,3

d)

1,3,1,3

12.

Balance the following equation: Cr(s) + Fe(NO₃)₂(ag) → Fe(s) + Cr(NO₃)₃ (ag)

a)

2,3,3,2

b)

2,3,2,3

c)

4,6,6,2

d)

1,3,3,1

13.

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

a)

the product is doubled

b)

the product is half the mass of the reactants

c)

the mass is the same

d)

the mass changes depending on the reaction

14.

To balance a chemical equation, it may be necessary to adjust the

a)

formulas of the products

b)

subscripts

c)

coefficients

d)

number of products

15.

How many elements are in C₆H₁₂O₆?

a)

1

b)

6

c)

3

d)

24

16.

How many atoms are there TOTAL in:
H₂SO₄

a)

6

b)

5

c)

7

d)

3

17.

Translate the word equation below:

Nitrogen reacts with Hydrogen to form Ammonia (NH₃).

a)

$N\ \ \rightarrow\ H\ +\ NH_3$

b)

$N_2\ +\ H_2\ \rightarrow\ NH_3$

c)

$N\ +\ H\ \rightarrow\ NH_3$

d)

$N_2\ \rightarrow\ H_2\ +\ NH_3$

18.

Translate the word equation below.

Hydrogen and Carbon Dioxide react to form Carbonic Acid (H₂CO₃).

a)

$H\ +\ CO_2\ \rightarrow\ H_2CO_3$

b)

$H\ \rightarrow\ CO_2\ +\ H_2CO_{3_{ }}$

c)

$H_2\ +\ CO_2\ \rightarrow\ H_2CO_3$

d)

$H_2\ \rightarrow\ CO_2\ +\ H_2CO_3$

19.

Translate the word equation below.

Aluminum and Hydrochloric Acid (HCl) react to form Aluminum Chloride and Hydrogen

a)

$Al\ +\ HCl\ \rightarrow\ AlCl_3\ \rightarrow\ H_2$

b)

$Al\ +\ HCl\ \rightarrow\ AlCl\ +\ H_2$

c)

$Al\ +\ HCl\ \rightarrow\ AlCl_3\ +\ H_2$

d)

$Al\ +\ HCl\ \rightarrow\ AlCl\ +\ H$

20.

Translate the word equation below.

Sulfur Trioxide reacts with Water to form Sulfuric Acid (H₂SO₄).

a)

$SO_3\ +\ H_2O\ \rightarrow\ H_2SO_4$

b)

$SO_3\ \rightarrow\ H_2O\ +\ H_2SO_4$

c)

$SO_2\ +\ H_2O\ \rightarrow\ H_2SO_4$

d)

$SO\ \rightarrow\ H_2O\ +\ H_2SO_4$

21.

When hydrogen reacts with sulfur, a smelly gas, dihydrogen monosulfide, is produced.

a)

H₂ + S → HS

b)

H₂+ S → H₂S

c)

H + S→ HS

d)

H + S→ H₂S

22.

Combining substances to form a new substance

a)

Displacement

b)

Synthesis

c)

Decomposition

d)

Oxidation

23.

Breaking down a substance into simpler substances

a)

Displacement

b)

Synthesis

c)

Decomposition

d)

Oxidation

24.

Cu + 2Ag(NO₃) → 2Ag + Cu(NO₃)

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Displacement Reaction

d)

Double Displacement Reaction

25.

Ca₃(PO₄)2 + 3 H₂SO₄ --> 3 CaSO₄ + 2 H₃(PO₄)

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Displacement Reaction

d)

Double Displacement Reaction

26.

Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?

a)

Decomposition

b)

Synthesis

c)

Combustion

d)

Single Replacement

27.

Which has a pH below 7?

a)

Acid

b)

Base

28.

What pH is the strongest base?

a)

1

b)

7

c)

4

d)

14

29.

When dissolved in water, acids produce:

a)

bases

b)

salts

c)

hydrogen ions

d)

hydroxide ions

30.

Which type of ion does a base produce when it is dissolved in water?

a)

oxide

b)

oxygen

c)

hydrogen

d)

hydroxide

31.

An oxyacid is made up of hydrogen, _________, and a third element

a)

nitrogen

b)

oxygen

c)

carbon

d)

hydroxide

32.

What is the formula for nitrous acid?

a)

HNO₂

b)

H₃N

c)

HNO₃

d)

HNO

33.

Water can act as both an acid and a base according to the bronsted lowry model. This means water is

a)

neutral

b)

conjugate

c)

ionic

d)

amphoteric

34.

If a solution is basic which ion will be more present?

a)

H+

b)

K+

c)

OH-

d)

H-

35.

This ion is responsible for the properties of acids

a)

Sodium ion

b)

Hydrogen ion

c)

Hydroxide ion

d)

Oxide ion

36.

This ion is responsible for the properties of bases

a)

Sodium ion

b)

Hydrogen ion

c)

Hydroxide ion

d)

Oxide ion

37.

When using the Arrhenius model, what types of ions indicate that a compound is an acid?

a)

H⁺

b)

OH^-1

38.

When using the Arrhenius model, what types of ions indicate that a compound is a base?

a)

H⁺¹

b)

OH^-1

39.

When using the Bronsted Lowry definition of acids and bases, the acid will ______________ a hydrogen proton.

a)

donate

b)

accept

40.

When using the Bronsted Lowry definition of acids and bases, the base will ______________ a hydrogen proton.

a)

donate

b)

accept

41.

Is the following compound an acid or a base?

HCl

a)

Acid

b)

Base

42.

Is the following compound an acid or a base?

NH₄OH

a)

acid

b)

base

43.

Barium hydroxide

a)

BaOH

b)

Ba2OH

c)

Ba(OH)2

44.

The cation in an acid is always

a)

a metal

b)

hydrogen

c)

hydroxide

d)

negatively charged

45.

When the polyatomic ion in an acid ends in -ate, the root name of the polyatomic ion is followed by the ending -_____.

a)

ide

b)

ic

c)

ous

d)

ite

46.

When the polyatomic ion in an acid ends in -ite, the root name of the polyatomic ion is followed the ending -_____.

a)

ide

b)

ic

c)

ous

d)

ite

47.

What are the products of this reaction?
Cu+ AgNO₃-->

a)

Cu(NO₃)₂+Ag

b)

CuNO₃ + Ag

c)

CuAg+NO₃

d)

Cu+ AgNO₃

48.

Predict the products for the this reaction:
K + HCl -->

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

d)

KCl + H

49.

What type of reaction is this?
2 C₆H₁₄ + 19 O₂ --> 12 CO₂ + 14 H₂O

a)

Single Replacement

b)

Double Replacement

c)

Combustion

d)

Decomposition

50.

What are the correct formulas and coefficients for the products of the following single-replacement reaction?
Mg + Al(OH)₃ →

a)

No Reaction

b)

Al + Mg(OH)₃

c)

2 Al + 3 Mg(OH)₂

d)

3 Al + MgOH₃

51.

__________ are made up of solutes and solvents.

a)

Solutions

b)

Suspensions

c)

Heterogeneous Mixtures

d)

Pure Substances

52.

NH₄NO₃

a)

soluble

b)

insoluble

53.

AgCl

a)

soluble

b)

insoluble

54.

NaCl

a)

soluble

b)

insoluble

55.

K₂SO₄

a)

soluble

b)

insoluble

56.

FeS

a)

soluble

b)

insoluble

57.

What of these is always soluble?

a)

Nitrates

b)

Phosphates

c)

Carbonates

d)

Hydroxides

58.

CaCO₃

a)

soluble

b)

insoluble

59.

K₂CO₃

a)

soluble

b)

insoluble

60.

Ca(OH)₂

a)

soluble

b)

insoluble

Chemical Equations Test

Total questions: 60

Worksheet time: 2hrs 18mins

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