Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

YR 9 SC - Reactions Revision Quiz 1

Total questions: 55

Worksheet time: 55mins

Name
Class
Date
1.

The Law of Conservation of Mass says that matter can neither be __________ or __________.

a)

created; destroyed

b)

recycled; renewed

c)

subtracted; added

d)

joined; separated

2.
Substances present at the start of a chemical reaction
a)
subscripts
b)
coefficients
c)
reactants
d)
products
3.

In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B have? 

a)

4g

b)

5g

c)

9g

d)

14g

4.
Is this equation balanced or unbalanced? 
H2 + O2 --> H2O
a)
balanced
b)
unbalanced
5.

A chemical reaction is a process in which

a)

all reactants change state

b)

products change into reactants

c)

the law of conservation of mass applies

6.

How can a chemical equation be balanced?

a)

changing subscripts

b)

erasing elements as necessary

c)

adding coefficients

d)

adding elements as necessary

7.

What are the products in the equation?

a)

Zn and CuSO4

b)

Zn and Cu

c)

ZnSO4 and Cu

d)

Zn only

8.

Which of the following is the balanced equation for Zn + HCl --> ZnCl2 + H2?

a)

Zn + HCl --> 2ZnCl2 + H2

b)

Zn + 2HCl --> ZnCl2 + H2

c)

2Zn + HCl --> 2ZnCl2 + H2

d)

Zn + 2HCl --> 2ZnCl2 + H2

9.

Which of the following chemical reaction shows the production of water from hydrogen gas and oxygen gas?

a)

2 H2O → 2 H2 + O2

b)

2 H2 + O2 → 2 H2O

c)

3 H2 + O2 → 3 H2O

d)

3 H2O → H2 + 3 O2

10.

The Law of Conservation of Mass states that in a chemical reaction,

a)

mass of the reactants and mass of the products are equal

b)

new elements are formed

c)

new atoms are created

d)

atoms are destroyed

11.

Calcium is reacting with water to form bubbles of gas. What is the name of the gas?

a)

hydrogen

b)

oxygen

c)

carbon dioxide

d)

calcium hydroxide

12.

The gas formed in the reaction is tested with burning splinter. What is the expected observation?

a)

Splinter burns with brighter flame.

b)

"Pop" sound is formed.

c)

The splinter continues to burn.

13.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
14.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released 
15.
A chemical reaction is...
a)
when a substance is mixed with another substance
b)
when a substance undergoes a change to form a new substance
c)
when a substance is dissolved into another substance
d)
when a substance is heated or exposed to another substance
16.

6 CO2+ 6 H2O + Energy → C6H12O6 + 6 O26\ CO_2+\ 6\ H_2O\ +\ Energy\ \rightarrow\ C_6H_{12}O_6\ +\ 6\ O_2

a)

endothermic reaction

b)

exothermic reaction

17.
Translate the following word equation: 
Liquid nitrogen and oxygen gas combine to form nitrogen monoxide gas. 
a)
N + O → NO
b)
N2 + O2 → N2O2
c)
N2(l) + O2(g) → NO(g)
d)
N(l) + O2(g) → NO(g)
18.

True or False: In a complete chemical equation, there must be the same number of atoms of each element on the reactants and products side.

a)

True

b)

False

19.

How many Oxygens are on the product side of this chemical equation?

a)

1

b)

2

c)

3

d)

4

20.

Why are chemical equations always balanced? Select ALL that apply.

a)

Matter cannot be created.

b)

Matter cannot be destroyed.

c)

Matter can only be rearranged/conserved.

d)

Matter doesn't matter.

21.

According to the pH range which substance is more acidic than lemon juice?

a)

Hydrochloric Acid

b)

Cabbage

c)

Milk

d)

Water

22.

Forms hydroxide ions (OH-) in water.

a)

Acids

b)

Bases

c)

Both

23.

pH less than 7.

a)

Acids

b)

Bases

c)

All

24.

pH greater than 7.

a)

Acids

b)

Bases

c)

All

25.

Which is most acidic?

a)

Milk

b)

Bleach

c)

Lemon Juice

d)

Water

26.

Which is the stronger acid?

a)

pH 1

b)

pH 8

c)

pH 4

d)

pH 13

27.

A solution with a pH of 7 is ________

a)

increasing

b)

neutral

c)

decreasing

d)

apple juice

28.

Which range of numbers represent basic solution?

a)

0-6

b)

7

c)

8-14

d)

3-9

29.

What primarily determines the pH of solution?

a)

solubility of solute

b)

Hydrogen ion (H+) concentration

c)

temperature of the solution

30.

If the pH of a solution is 9, it is a....

a)

acid

b)

base

c)

both

d)

none

31.

A sour taste is a characteristic of:

a)

acids

b)

bases

c)

neutral

d)

pH scale

32.

Which is a characteristic of a base?

a)

tastes sour

b)

found mostly in foods

c)

feels slippery

d)

turn litmus paper red

33.

pH is the measure of the concentration of ______.

a)

Acids

b)

H+ ion

c)

OH- ion

d)

Bases

34.

Which of the following correctly identifies an Acid-Base Pair?

a)

HH4+ , OH-

b)

H2O , OH-

c)

CaCO3 ,CaCl2

d)

HNO3 , H2SO4

35.
If a solution is basic which ion will be more present?
a)
H+
b)
K+
c)
OH-
d)
H-
36.

Which gas is given off when acids react with a carbonate?

a)

oxygen

b)

hydrogen

c)

ammonia

d)

carbon dioxide

37.

Which salt is formed when nitric acid reacts with magnesium oxide?

a)

magnesium chloride

b)

magnesium sulfate

c)

magnesium nitrate

d)

magnesium iodide

38.

Which of the following properties is not true of a base?

a)

It has a bitter taste.

b)

It reacts with ammonium chloride to produce ammonia gas

c)

It turns blue litmus paper red.

d)

It reacts with an acid to produce water and a salt

39.

Which substance reacts with dilute hydrochloric acid to form hydrogen?

a)

zinc carbonate

b)

zinc hydroxide

c)

zinc metal

d)

zinc oxide

40.

Complete the sentence.

A substance that is more basic (alkaline) has a _____ pH than a substance that is acidic.

a)

lower

b)

higher

c)

the same

d)

none of the above

41.

Products of a neutralisation reaction are always:

a)

acid and a base

b)

acid and a salt

c)

salt and water

d)

salt and a base

42.
What do acids do to red litmus paper?
a)
Turn it Red 
b)
Turn it Blue
c)
Turn it Yellow
d)
Turn it Green
43.

Which of the following is a neutralization reaction?

a)

2Na + Cl2 → 2NaCl

b)

CH4 + 2O2 → CO2 + 2H2O

c)

HCl + KOH → KCl + H2O

d)

CaCO3 → CO2 + CaO

44.
A neutralisation reaction is a reaction between 
a)
Acid and a Base 
b)
Acid and water 
c)
Base and water 
d)
None of the above 
45.
What type of reaction is the following: 
HCl  + Zn --> ZnCl2 + H2
a)
Neutralisation
b)
Acid and a metal 
c)
Acid and a carbonate 
d)
Ionic 
46.

Complete the following reaction:

Hydrochloric acid + magnesium hydroxide -->

a)

Magnesium chloride + water

b)

Magnesium + water

c)

Magnesium chloride + hydrogen

d)

Magnesium chloride + water + carbon dioxide

47.

.............................. + sodium hydroxide --> sodium chloride + water

a)

Nitric acid

b)

Sulphuric acid

c)

Hydrochloric acid

d)

Ethanoic acid

48.
Acid + Metal --> ?
a)
Salt + Water
b)
Salt + Hydrogen
c)
Salt
d)
Hydrogen
49.
What is the gas produced from a Acid + Metal reaction?
a)
water vapour
b)
carbon dioxide gas (CO2)
c)
hydrogen gas (H2)
d)
oxygen gas (O2)
50.
What are the products formed from the Acid + Carbonate reaction?
a)
hydrogen gas (H2), salt
b)
water (H2O), carbon dioxide (CO2), salt
c)
water (H2O), salt
51.

What is the test for carbon dioxide produced from a reaction?

a)

the burning splint test

b)

the glowing splint test

c)

bubbling the gas through limewater

52.

hydrochloric acid + zinc carbonate --> ?

a)

sodium chloride + carbon dioxide gas + water

b)

sodium chloride + water

c)

sodium chloride + hydrogen gas

53.

Which option/s is/are a property/ies of an acid?

a)

have a sour taste

b)

can conduct electricity in aqueous state

c)

turn red litmus paper blue

d)

reacts with carbonates to give carbon dioxide gas

54.

A unknown liquid that is suspected to be an acid is found in the lab. How do we test to determine if it is an acid?

a)

taste it to see if it is sour

b)

use a red litmus paper

c)

use a blue litmus paper

d)

add magnesium to it and see if bubbles are produced

55.

Which of the following is an acid ?

a)

Shampoo

b)

Baking soda

c)

Orange juice

d)

Water

Similar Resources on Wayground

Pregnancy revision quiz

50 questions

Pregnancy revision quiz

quiz

Worksheet

•

9th - 12th Grade

Physical & Chemical Properties/Changes + Atoms & Molecules

55 questions

Physical & Chemical Properties/Changes + Atoms & Molecules

quiz

Worksheet

•

7th - 9th Grade

Classification

50 questions

Classification

quiz

Worksheet

•

6th - 9th Grade

Module 1: Earth and Space

50 questions

Module 1: Earth and Space

quiz

Worksheet

•

7th - 10th Grade

12. THE UNIVERSE

51 questions

12. THE UNIVERSE

quiz

Worksheet

•

9th - 12th Grade

ESS 3.3 - Clouds, Air Masses, Fronts, and Climate

55 questions

ESS 3.3 - Clouds, Air Masses, Fronts, and Climate

quiz

Worksheet

•

9th Grade

Combustibili Fossili

58 questions

Combustibili Fossili

quiz

Worksheet

•

8th - 10th Grade

Y9 Chemistry revision

50 questions

Y9 Chemistry revision

quiz

Worksheet

•

8th - 10th Grade