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Acids and Bases Review

Total questions: 54

Worksheet time: 33mins

Name
Class
Date
1.
Acids are what range on the pH scale?
a)
0-14
b)
0-6.99
c)
7
d)
7.1-14
2.
Bases are what range on the pH scale?
a)
0-6.99
b)
7
c)
7.1-14
d)
0-14
3.
7 on the pH scale means that it is...
a)
Acidic
b)
Basic
c)
Neutral
4.
Lemon juice is an example of  __________
a)
A base
b)
An acid
c)
A neutral substance
5.
Soap is an example of  __________
a)
A base
b)
An acid
c)
A neutral substance
6.
Water is an example of  __________
a)
A base
b)
An acid
c)
A neutral substance
7.
When found in food, acids are ________
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
8.
When found in food, bases are _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy
9.
What color does acid turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns red litmus paper blue.
c)
It turns blue litmus paper blue.
d)
It turns blue litmus paper red.
10.

What color does bases turn litmus paper?

a)

It turns litmus paper purple.

b)

It turns blue litmus paper red.

c)

It turns red litmus paper blue.

d)

It turns red litmus paper red.

11.
A pH scale is...
a)
A  corrosive substance that says a substance is an acid.
b)
An indicator that tells if a substance is an acid or base. 
c)
A blue litmus paper.
d)
A red litmus paper.
12.
What does corrosive mean?
a)
That a substance is a strong base.
b)
That a substance is neutral.
c)
That a substance can easily wear away
d)
The substance is the strongest acid
13.

List four factors that affects the rate of a reaction

a)

temperature

b)

concentration

c)

surface area

d)

volume

e)

catalysts

14.

A temperature increase causes the particles ......

a)

to slow down

b)

move faster

c)

collide higher

d)

in the right order

15.

How does a catalyst work in speeding up a reaction?

a)

By lowering the activation energy or reaction

b)

by giving them more energy

c)

by making them more available

16.
The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?
a)
Red, because the activation energy is larger
b)
Blue, because the activation energy is lower
c)
both reaction progress at the same rate
17.

Why does a higher concentration increase the rate of reaction?

a)

it increases the amount of reactants

b)

it lowers the activation energy

c)

it increases the energy of particle collisions

d)

it increases the frequency of particle collisions

18.

Why does a higher temperature increase the rate of a reaction?

a)

it increases both the frequency and energy of particle collisions

b)

it only increases the frequency of particle collisions

c)

it only increases the energy of particle collisions

d)

it reduces the activation energy of the reaction

19.

The ______________is required to break the bonds of the reactants.

a)

Carbonic energy

b)

Activation energy

c)

Plutonic energy

d)

Energi Gaib

20.
Why don't all collisions between particles cause a reaction?
a)
the particles also need to collide with a catalyst
b)
not all the particles collide with enough energy
c)
not all the particles collide at a high enough temperature
d)
the particles need to collide with each other twice
21.
What is the rate of reaction?
a)
How fast a reaction is 
b)
How big a reaction is
c)
How loud a reaction is
d)
How much gas a reaction produces
22.
Grinding a seltzer tablet into powder increases the rate of reaction due to increased
a)
concentration
b)
surface area
c)
temperature
d)
reactants
23.

Increasing the temperature gives particles more __________.

a)

Time

b)

Energy

c)

Space

d)

Frequency

24.

As the frequency of ______________ increases, the rate of reaction increases.

a)

Time

b)

Reactions

c)

Collisions

d)

Reactants

25.

Adding a catalyst ___________ the activation energy.

a)

Raises

b)

Lowers

c)

Doesn't affect

d)

Inreases

26.

Icing sugar has a greater ______ _____ than a solid cube of

sugar.

a)

Surface Area

b)

Catalyst

c)

Temperature

27.
A solution of hydrogen peroxide releases oxygen slowly at room temperature.
 hydrogen peroxide → water + oxygen
 The diagrams show the effect of adding blood to the solution. What could be the reason for the observed change? 
a)
Blood contains an enzyme. 
b)
Blood contains water. 
c)
The hydrogen peroxide becomes more concentrated. 
d)
The hydrogen peroxide is neutralised by blood. 
28.

Materials made by humans through chemically changing natural resources are called?

a)

Nonrenewable Resources

b)

Synthetic Materials

c)

Renewable Resources

29.

Natural resources are?

a)

Resources that exist within the environment without humans having to intervene, or put them there.

b)

Resources that exist within the environment through due to human actions.

c)

Organic substrates found deep within the earth's lithosphere

30.

Which of the following is NOT a natural resource?

a)

wood

b)

cotton

c)

oil

d)

plastic

e)

coal

31.

Which of the following is NOT a synthetic material?

a)

Nylon

b)

plastic

c)

paper

d)

polyester

32.

Synthetic materials are made from chemically processing _________________?

a)

plastics

b)

naturals resources

c)

chemicals

33.

Synthetic Materials tend to be ___________________ than Natural materials.

a)

less durable

b)

more durable

c)

just as durable

34.

Both synthetic materials and natural materials are made from _________________?

a)

natural resources

b)

nonrenewable resources

c)

plastic

35.

What is an advantages of a

synthetic material?

a)

stronger

b)

not renewable

c)

more expensive

d)

does not require natural resouces

36.

Which is NOT a benefit of synthetic products?

a)

pests don't like it as much

b)

more biodegradable

c)

more durable

d)

stronger

37.

Read the following statements. Select each answer choice that is a true statement about synthetic materials. Please select 4 answers.

a)

Synthetic materials are made from natural resources

b)

Synthetic materials are made by chemically changing natural resouces to create a material with different characteristics.

c)

Some examples of synthetic materials are plastics, medicines, and new fuels.

d)

A synthetic substance cannot be chemically identical to a naturally-occurring substance

e)

Making and using synthetic materials have both positive and negative impacts on society.

38.

A chain of repeating units (called monomers)

a)

monomer

b)

dimer

c)

replicate

d)

polymer

39.
Why do you think people use plastic for their products ?
a)
Because it's strong
b)
Because its very cheap and it's easy to make
c)
Because it's expensive
d)
Because it's rare and it's good for the enviorment
40.

Define polymer

a)

circular molecule made with many repeating units

b)

short molecule made of a few repeating units

c)

long, chain-like molecule made of repeating units

d)

chain-like molecule that contains hydrogen and oxygen

41.
Identify the salt in the following equation:
Zn(OH)2 + HNO3   ---> H2O  + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2
42.
What are the products to a neutralization reaction?
a)
H2 + Ionic Salt
b)
H2O + Ionic Salt
c)
H3O+ + Ionic Salt
d)
OH- + Ionic Salt
43.

A type of chemical that forms solutions that taste sour, due to high concentrations of positive hydrogen ions

a)

acid

b)

base

c)

salt

d)

pH

44.
Ca(OH)2 is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
45.
HBr is an example of a(n)
a)
Acid
b)
Base
c)
Neutral
46.
What might happen if you mixed a strong acid with an equally strong base?
a)
You would see an explosive chemical reaction.
b)
The acid would destroy the base.
c)
The base would destroy the acid.
d)
You'd wind up with a pH-neutral substance.
47.
Acid + Metal --> ?
a)
Salt + Water
b)
Salt + Hydrogen
c)
Salt
d)
Hydrogen
48.
What gas is produced when a metal reacts with an acid?
a)
Water vapour
b)
Acidic gas
c)
Hydrogen
d)
Nitrogen
49.
A neutralisation reaction produces 
a)
An acid 
b)
A neutral substance 
c)
Only water 
d)
Salt and water 
50.
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 
51.

Metal carbonates react with acid to form....

a)

Salt, carboxylic acid and water

b)

Salt, carbon dioxide and water

c)

Salt and carbonated water

d)

Salt and hydrogen

52.

What gas is always produced when carbonates reacts with acids?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

53.

Select the following reasons why the polymer of plastic is a useful material in society.

a)

moldable

b)

flexible

c)

biodegrades slowly

d)

strong

54.

Select 3 factors that could result in a neutralization reaction not ending up neutral.

a)

Volume

b)

Concentration

c)

Strength of substance

d)

Pressure

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