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SNC1D Chemistry Review
SNC1D Chemistry Review
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Grade 9 Academic Chemistry Review
Flashcards
61 cards
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Practice quiz
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Questions
61
Answers
1
How many valence electrons does Magnesium have?
2
3
4
1
2
An ionic compound forms when a metal gains an electron and a non-metal loses an electron.
True
False
3
The formula, C
3
H
2
, is:
Ionic
Molecular
4
Which of the following symbols represent the element with an atomic mass of 14?
S
C
Ni
N
5
Location, mass, and charge of a neutron?
Nucleus, 1, 0
Nucleus, 1, +1
Outer Orbit, 0, -1
Nucleus, 1, -1
6
The following is the Lewis-dot diagram for chlorine.
True
False
7
Which of the following about particle theory is false:
The particles are never moving.
All particles have space between them.
All matter is made up of particles.
Pure substance particles are identical.
8
An element that is dull and brittle is known as a:
non-metal
metalloid
metal
9
How many valence electrons does this atom have?
12
11
8
1
10
What type of bond is formed?
Hydrogen
Covalent
Dipole
Ionic
11
In evaporation, is heat added or removed to change the state of water?
Removed
Added
12
Rusting of iron is an example of a:
Physical change
Chemical change
13
In a periodic table, horizontal rows are called _______ and vertical columns are called ______.
Periods, Groups
Columns, Periods
Groups, Periods
Periods, Sections
14
The atomic number of an element is 11 and it has an atomic mass of 23. The element has:
11 electrons, 11 protons, 12 neutrons
11 electrons, 11 protons, 11 neutrons
12 electrons, 12 protons, 11 neutrons
11 electrons, 10 protons, 12 neutrons
15
Which group is very reactive with water?
Alkaline earth metals
Noble gases
Halogens
Alkali metals
16
What is the term for a solid changing into a gas?
Deposition
Evaporation
Melting
Sublimation
17
Oxygen, chloride, and fluorine usually form:
Negative ions
They do not form ions
Positive ions
18
What is the number of valence electrons for nitrogen?
4
5
3
6
19
What type of bond is formed?
Ionic
Covalent
Dipole
Hydrogen
20
Is it a ionic or molecular compound: High melting point.
Ionic
Molecular
21
How many valence electrons does Hydrogen have?
2
1
4
3
22
The following are examples of pure substances
except for
:
Salt
Sand
Sugar
Water
23
Location, mass, and charge of a proton?
Nucleus, 1, 0
Outer Orbit, 1, +1
Nucleus, 1, -1
Nucleus, 1, +1
24
An element that is shiny and ductile is known as a:
non-metal
metal
metalloid
25
Lithium, Sodium, and Potassium are examples of:
Halogens
Non-metals
Alkali metals
Noble gases
26
An element that is dull but conducts electricity could be a:
metalloid
metal
non-metal
27
The atomic mass tells us the number of _________ in a neutral atom:
protons only
protons and electrons
protons plus neutrons
neutrons only
28
Is it a ionic or molecular compound: Conductive in water.
Molecular
Ionic
29
Which element is found in group 5, period 4?
Chromium
Vanadium
Zirconium
Yttrium
30
Gas particles are:
Barely moving.
Move freely at high speeds.
Only move fast when heated.
Held tightly together.
31
Which subatomic particles participate in chemical reactions?
Protons.
Valence electrons.
Neutrons
All electrons.
32
Is it a ionic or molecular compound: Metal + Non-metal
Ionic
Molecular
33
The size of the atom _____________ as you move down a group in the periodic table.
remains constant
increases
decreases
34
What is the difference between a heterogeneous and a homogeneous mixture?
Hetero - Can see two different parts; Homo - Looks the same
Both have two different parts that can be seen
Hetero - Looks the same; Homo - Can see two different parts
Both looks the same throughout
35
Which of the following is
not
an example of a heterogeneous mixture?
Chocolate chip cookies
Rocks
Pizza
Blood
36
Location, mass, and charge of an electron?
Nucleus, 1, +1
Outer Orbit, 1, 0
Outer Orbit, 1, -1
Outer Orbit, 0, -1
37
You have a rock with a volume of 15cm
3
and a mass of 60g. What is its
density
?
60g/cm3
4g/cm3
0.25g/cm3
900g/cm3
38
What is the term for the change from a liquid to a solid?
Evaporation
Freezing
Sublimation
Melting
39
If the density of water is 1g/mL, the density of wood is 0.7g/mL, will the wood sink or float?
Float
Sink
40
What is the maximum number of electrons that the fourth energy level can hold?
8
18
2
10
41
What element is in period 4 and group 13?
germanium
aluminum
gallium
titanium
42
Which of the following are
false
about non-metals?
Usually shiny solids.
located on the right side of the periodic table.
Mostly gases and dull, powdery solids.
Bromine is the only liquid non metal.
43
What is true about all elements in the same period?
They are equally reactive.
They have the same number of shells.
They have the same number of valence electrons.
They are in the same group.
44
Which of the following atoms is the largest in size?
Mg
Sr
Br
I
45
Which of the following groups of elements all have 7 electron in the outside energy level?
F, Cl, Br
O, S
Na, K, Cl
Mg, O, Cl
46
What particles make up the atomic nucleus?
protons only.
protons and neutrons.
protons and electrons.
protons, neutrons and electrons.
47
Which group on the periodic table are the most reactive?
All of the groups are equally reactive.
Halogens
Alkaline earth metals
Noble gases
48
The following Bohr-Rutherford diagram represents oxygen.
False
True
49
Is it a ionic or molecular compound: Solid, liquid or gas at room temperature.
Ionic
Molecular
50
Which of the following is NOT a clue to a chemical change?
There is a change in colour.
There is a change in temperature.
The substance melted.
Heat and/or light is given off.
51
What is the
mass
of a rock if the density is 5g/cm
3
and the volume is 20 cm
3
?
4g
20g
100g
0.2g
52
True or False: a pure substance contains only one type of particle.
False
True
53
Which of the following is true about the periodic table?
All the non-metals are on the left and in the middle.
The metals are on the right.
The non-metals are on the right.
The metals are on the right and in the middle.
54
Dissolving sugar in water is an example of a:
Physical change
Chemical change
55
How many atoms are found in C
8
H
9
NO
2
(Tylenol)?
4
22
20
30
56
The atomic number tells us the number of _________ in a neutral atom:
neutrons only
protons and electrons
protons only
protons plus neutrons
57
Which of the following is the correct ion of bromine?
Br+1
Br
Br-2
Br-1
58
What is the electron configuration of potassium?
2, 8, 7, 2
2, 10, 7
2, 8, 8, 1
19, 0, 0, 0
59
What is the atomic mass of an atom with 6 protons, 6 electrons, and 7 neutrons?
12
6
14
13
60
The noble gasses are:
All of the above.
The last group on the right of the periodic table.
Will have full valence electron shells.
Unreactive.
61
Matter is:
Anything with mass.
Energy.
Anything with mass and volume.
Anything with volume.
