Which of the following is a physical property

Melts when heated, conducts heat

What does a chemical formula tell the reader?

Type of elements present, number of atoms present

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Science 9 Chemistry Review

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A summary quiz for Science 9 Chemistry Unit (Saskatchewan Curriculum)

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Questions 20

Answers

1
First Nations people believed the following was an element
Oxygen
Earth
Metal
Smoke
2
This elements is the greatest conductor of electricity
Bananas
Phosphorus
Silver
Zinc
3
An electron is
negatively charged
in the nucleus
The largest sub-atomic particle
positively charged
4
Chemistry is the study of
Outerspace
The body
Electricity
Chemicals and Elements
5
Which of the following is a physical property
Reacts with oxygen
Melts when heated
Weight
conducts heat
6
"Kr" is the symbol for
Xenon
Krypton
Carbon
Boron
7
Protons are
part of the covalent bond
outside the nucleus
The biggest sub-atomic particle
None of the above
8
Which of the following is a noble gas?
Oxygen
Krypton
Lithium
Carbon
9
"Li" is the symbol for
Zinc
Lithium
Strontium
Tantalum
10
"Pm" is the symbol for
Protactinium
Promethium
Phosphorus
Potassium
11
Atoms sharing electrons is an example of
a metalloid
ionic bonding
covalent bonding
12
What does a chemical formula tell the reader?
How to make an explosion
Type of elements present
number of atoms present
how the solution tastes
13
Niels Bohr was the first to suggest electrons were outside of the nucleus
Disagree
Agree
14
Which of the following is a pattern found on the periodic table of elements
Family groups
Alphabetical order
Arranged by energy
Arranged by colour
15
Neutrons are
positively charged
the largest subatomic particle
always equal to the number of protons
no fun at a party
16
A chemical change always produces
Explosions
Gas
A new substance
A colour change
17
"Au" is the symbol for
Platinum
Copper
Silver
Gold
18
This metal is a liquid at room temperature
Xe
Hg
Na
Au
19
A scientific law is
a generalization
a set of obseravations
all of the above
supported by research
20
An example of a mechanical mixture would be
Maple Syrup
salad dressing
water
Trail mix

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