Quiz about Junior Cycle Science Chemical World

Question 1

It is the amount of matter of an object or substance.

Accepted Answer

mass

Answer

Volume

Answer

density

Question 2

In this chemical equation , CH₄ and 2O₂are called the...

Accepted Answer

Reactants

Answer

Products

Answer

Coefficient

Answer

Subscript

Question 3

If you have 15 grams of Baking Soda and 20 grams of Vinegar as products, what would you expect the mass of your reactants to be?

Accepted Answer

35 grams

Answer

15 grams

Answer

20 grams

Answer

5 grams

Question 4

How is a physical change different from a chemical change?

Accepted Answer

Chemical changes produce a new substance, physical changes stay the same substance

Answer

There is absolutely no difference

Answer

Chemical changes create and destroy matter, physical changes don't

Answer

Physical changes create and destroy matter, chemical changes dont

Question 5

Something that takes up space and has mass.

Accepted Answer

matter

Answer

volume

Answer

mass

Answer

density

Question 6

Which state of matter has particles arranged like this?

Accepted Answer

solid

Answer

liquid

Answer

gas

Question 7

Which state of matter has particles arranged like this?

Accepted Answer

gas

Answer

solid

Answer

liquid

Question 8

Which of the following statements describes a liquid?

Accepted Answer

It takes the shape of it's container

Answer

It has a fixed shape

Question 9

State of matter with no definite shape or volume.

Accepted Answer

gas

Answer

solid

Answer

liquid

Answer

Mississippi

Question 10

made up of one kind of matter and has a definite set of properties

Accepted Answer

pure substance

Answer

compound

Answer

atom

Answer

mixture

Question 11

This diagram represents a _____.

Accepted Answer

pure substance that is a compound

Answer

mixture of elements

Answer

pure substance that is an element

Answer

mixture of compounds

Question 12

This diagram represents a _____.

Accepted Answer

mixture of elements and compounds

Answer

pure substance that is a compound

Answer

pure substance that is an element

Answer

mixture of compounds

Question 13

This picture represents which of the following?

Accepted Answer

mixture

Answer

element

Answer

compound

Question 14

Which of the following pairs of substances may best be separated through distillation

Accepted Answer

water and alcohol

Answer

sand and soil

Answer

water and soil

Answer

salt and sand

Question 15

To separate iron filings and sulfur what method should you use?

Accepted Answer

magnet

Answer

filtration

Answer

sorting

Answer

boiling

Question 16

Which one of the following techniques would best be used to separate soil and water?

Accepted Answer

Filtration

Answer

crystallization

Answer

distillation

Answer

Chromatography

Question 17

How do materials change from one state of matter to another?

Accepted Answer

They gain or lose energy

Answer

They break appart

Answer

The particles get stickyer

Answer

They are magnetised to themselves

Question 18

Which subatomic particle has a positive (+) charge?

Accepted Answer

Proton

Answer

Neutron

Answer

Electron

Question 19

The subatomic particles in blue are...

Accepted Answer

Protons

Answer

Neutrons

Answer

Electrons

Question 20

In this picture, the Electrons are found in which color?

Accepted Answer

Green

Answer

Blue

Answer

Red

Question 21

Which particle has a positive charge?

Accepted Answer

proton

Answer

electron

Answer

orbital

Answer

neutron

Question 22

Which of these is a property of metals?

Accepted Answer

It's malleable

Answer

It can't conduct electricity

Answer

They are used in food

Answer

It's very brittle

Question 23

Metals are found on the _____ side of the periodic table

Accepted Answer

left

Answer

middle (this one doesn't make any sense, I know)

Answer

right

Question 24

How many different types of elements are there in this picture?

Accepted Answer

5

Answer

4

Answer

13

Answer

41

Question 25

Which is the correct formula for:
one carbon (C)
two oxygen (O)

Accepted Answer

CO2

Answer

CO

Answer

C2O

Answer

2CO

Question 26

calcium chloride

Accepted Answer

CaCl2

Answer

CaCl

Answer

CaCl3

Answer

Ca2Cl

Question 27

sodium oxide

Accepted Answer

Na2O

Answer

NaO

Answer

SO

Answer

S2O

Question 28

What would be the proper chemical formula for combining Al³⁺ and l^- :

Accepted Answer

Al l3

Answer

Al3l

Answer

Al l

Answer

Al3 l3

Question 29

Which is an example of a solute?

Accepted Answer

Sugar

Answer

Egg whites

Answer

Water

Answer

Acetone

Question 30

The temperature at which a substance changes from a solid to a liquid

Accepted Answer

melting point

Answer

boiling point

Answer

freezing point

Answer

evaporation

Question 31

The graph shows the temperature of 1kg samples of three materials, A, B, and C, as they are heated. Heating occurs at a constant rate.

If material A starts to melt at 60 ^oC. At that point, the line on the graph will __________.

Accepted Answer

become horizontal

Answer

continue on as before

Answer

begin to curve upward

Answer

become steeper

Question 32

The rate of a reaction is how _____________ a reaction occurs.

Accepted Answer

Quickly

Answer

Easily

Answer

Unusually

Answer

Differently

Question 33

Adding a catalyst ___________ the activation energy.

Accepted Answer

Lowers

Answer

Raises

Answer

Doesn't affect

Answer

Inreases

Question 34

Increasing the temperature gives particles more __________.

Accepted Answer

Energy

Answer

Time

Answer

Space

Answer

Frequency

Question 35

Rate of reaction can be found by measuring the _________ of gas produced.

Accepted Answer

Volume

Answer

Mass

Answer

Depth

Answer

Area

Question 36

Grinding a seltzer tablet into powder increases the rate of reaction due to increased

Accepted Answer

surface area

Answer

concentration

Answer

temperature

Answer

reactants

Question 37

_______ are proteins that speed up biochemical reactions.

Accepted Answer

Enzymes

Answer

Hemoglobin

Answer

DNA

Answer

Red blood cells

Question 38

Which of the following statements is correct?

Accepted Answer

Red litmus paper turns blue when placed in a base.

Answer

Blue litmus paper turns red when placed in a base.

Answer

Blue litmus paper stays blue when placed in an acid.

Answer

Red litmus paper stays red when placed in a base.

Question 39

Pure water has a pH of 7. Pure water _______.

Accepted Answer

is a neutral substance

Answer

is a base

Answer

could be either an acid or a base

Answer

is an acid

Question 40

Which of the following is true about acids and bases?

Accepted Answer

The lower the pH, the stronger the acid

Answer

the higher the pH, the stronger the acid

Answer

The lower the pH, the more neutral the acid

Answer

The higher the pH, the weaker the base

Question 41

Bleach is a strong base, what is the pH level of bleach?

Accepted Answer

13

Answer

14

Answer

1

Answer

2

Question 42

What are indicators used for

Accepted Answer

Measuring strength of acids or alkalis

Answer

Measuring density of substances

Answer

Drinking

Answer

Decoration

Question 43

if we wanted to neutralise a strong acid what should we add?

Accepted Answer

A alkali

Answer

water

Answer

lotion

Answer

More acid

Question 44

In an exothermic reaction, heat is ...

Accepted Answer

given out

Answer

taken in

Question 45

What instrument would you use to detect an endothermic or exothermic reaction?

Accepted Answer

thermometer

Answer

triple beam balance

Answer

ruler

Answer

timer

Question 46

What type of reaction occurs in a hand warmer?

Accepted Answer

exothermic

Answer

endothermic

Question 47

What kind of reaction is this?

Accepted Answer

Exothermic

Answer

Endothermic

Answer

Cannot be determined

Question 48

Which letter corresponds to the activation energy of the forward reaction?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 49

What does Sustainable mean?

Accepted Answer

something that can continue into the future

Answer

something that ends quickly

Answer

something that humans can eat

Answer

something sticky

Junior Cycle Science Chemical World

50 questions

It is the amount of matter of an object or substance.

In this chemical equation , CH₄ and 2O₂are called the...

If you have 15 grams of Baking Soda and 20 grams of Vinegar as products, what would you expect the mass of your reactants to be?

How is a physical change different from a chemical change?

Something that takes up space and has mass.

Which state of matter has particles arranged like this?

Which state of matter has particles arranged like this?

Which of the following statements describes a liquid?

State of matter with no definite shape or volume.

made up of one kind of matter and has a definite set of properties

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Junior Cycle Science Chemical World

50 questions

It is the amount of matter of an object or substance.

In this chemical equation , CH4 and 2O2 are called the...

If you have 15 grams of Baking Soda and 20 grams of Vinegar as products, what would you expect the mass of your reactants to be?

How is a physical change different from a chemical change?

Something that takes up space and has mass.

Which state of matter has particles arranged like this?

Which state of matter has particles arranged like this?

Which of the following statements describes a liquid?

State of matter with no definite shape or volume.

made up of one kind of matter and has a definite set of properties

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

In this chemical equation , CH₄ and 2O₂are called the...