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The Periodic Table, Molecules, Chemical & Physical Properties & Changes Flashcards | StudBud
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The Periodic Table, Molecules, Chemical & Physical Properties & Changes
The Periodic Table, Molecules, Chemical & Physical Properties & Changes
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This is a grade 9 chemistry quiz
Flashcards
63 cards
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Questions
63
Answers
1
Ionic or Covalent?: Ozone (O
3
)
Ionic
Covalent
2
What is a covalent compound?
When atoms are attracted to each other because they have opposite charges
When protons and neutrons are held together using strong force
When atoms share electrons
When 2 or more atoms are bound together by chemical bonds
3
True or False: Ionic compounds are more likely to form polymers than covalent compounds
True
False
4
Physical or Chemical Property or Change?: Toxicity
Physical Property
Chemical Change
Physical Change
Chemical Property
5
What is the formula for this compound?: Phosphorus trichloride
P3Cl
PhCl3
PC3
PCl3
6
Physical or Chemical Property or Change?: Density
Chemical Change
Physical Change
Chemical Property
Physical Property
7
What element is in family 17 and period 3?
Beryllium
Argon
Chlorine
Aluminium
8
What are the indicators that a compound is covalent?
The name of the compound ends in "ide"
There are two or more elements in the compound
The name of the compound contains roman numerals
The compound contains multiple non-metals
9
This element is in period 3 and family 14.
Argon
Silicon
Boron
Aluminium
10
These types of compounds tend to dissolve easily.
Ionic
Molecular elements
All of these are correct
Covalent
11
How many atoms are in a molecule of C
6
H
13
NO
2
?
22
20
21
18
12
Physical or Chemical Property or Change?: Dough is baked into bread.
Physical Property
Chemical Change
Physical Change
Chemical Property
13
Physical or Chemical Property or Change?: Green food colouring is added to a glass of water.
Chemical Change
Physical Property
Chemical Property
Physical Change
14
The most reactive non-metals are...
The Halogens
The Alkaline Earth Metals
The Nobel Gasses
The Alkali Metals
15
Physical or Chemical Property or Change?: Sugar dissolves in water.
Physical Change
Physical Property
Chemical Property
Chemical Change
16
How many atoms are in a molecule of CaCO
3
?
3
9
7
5
17
Which of the following is not a pure substance?
Solid gold
Distilled water
Oxygen gas
Saline solution
18
Where are the
non-metals
on the periodic table?
All non-metals are on the left side
Most non-metals are on the left side
Most non-metals are on the right side
All non-metals are on the right side
19
What hazard is indicated by this WHMIS symbol?
Combustion hazard
Explosive hazard
Oxidation hazard
Corrosive hazard
20
How many atoms are in a molecule of C
6
H
12
O
6
?
24
18
6
12
21
The electron shielding effect is when the...
Electrons shield other electrons from their charge.
Inner electrons shield the outer electrons from the charge of the neutrons
Protons form a shield around the electrons in order to destroy the atom.
Inner electrons shield the valence electrons from the charge of the protons
22
What are two elements that are metalloids?
Boron and silicon
Silicon and carbon
Aluminium and boron
Silicon and aluminium
23
What do all elements in the same family have in common?
The same number of electrons in their outer energy level
The same number of energy levels
Same number of protons
Same size
24
Metals form these types of ions.
Neutral ions
Cations
Anions
Dogions
25
This is another word for the
rows
of the periodic table.
Periods
Families
Columns
Groups
26
What is the formula for this compound?: Sodium bromide
NaBr
NB
NaB
NBr
27
True or False: The elements with the largest atomic numbers are often synthetic
False
True
28
When are atoms at their "happiest"?
When they have a full inner shell
When they are negatively charged
When they have a full valence shell
When they are bound to another atom
29
Name the following compound: OF
2
Oxygen difluoride
Oxygen fluoride
Monoxygen difluoride
Oxygen fluorine
30
What structure do solid ionic compounds form?
A crystal lattice structure
A triangular structure
An irregular amorphous structure
A globular structure
31
What elements are represented in a molecule of C
12
H
2
Cl
3
O
2
?
Hydrogen, Carbon, Oxygen
Oxygen, Chlorine, Calcium, Hydrogen
Helium, Carbon, Chlorine, Oxygen
Hydrogen, Chlorine, Carbon, Oxygen
32
A compound consisting of 2 phosphorus atoms and 3 oxygen atoms would be called…
Phosphorus trioxide
diphosphorus trioxide
Phosphorus oxide
Oxygen diphosphorus
33
Which of the following is likely
not
a characteristic of a non-metal?
Shiny
Brittle
Gas
Poor conductor
34
This element is in period 1 and family 18.
Hydrogen
Neon
Helium
Carbon
35
What is the formula for this compound?: Magnesium Nitride
MgN
Mg2N3
Mg3N2
Mg2N
36
Beryllium has an atomic number of 4 and an atomic mass of 9.0122. What is the most common isotope of Beryllium?
Beryllium-4
Beryllium-10
Beryllium-9
Beryllium-5
37
Fluorine is in this family and period.
Family 18, Period 1
Family 17, Period 1
Family 17, Period 2
Family 2, Period 17
38
What do all elements in the same period have in common?
Same number of electrons in their outer energy level
The same number of energy levels
Same number of protons
Same size
39
True or False: Covalent molecules are more attracted to each other than ionic molecules
True
False
40
Molecules contain.....
More than one atom
More than 3 elements
More than one element
Only protons
41
What is the formula for aluminum oxide?
Al2S3
AlO4
Al2O4
Al2O3
42
Physical or Chemical Property or Change?: Water is heated and changes into water vapour
Chemical Change
Physical Property
Chemical Property
Physical Change
43
Name the following compound: Ca
3
N
2
Calcium nitride
Calcium dinitride
Calcium nitrogen
Tricalcium Dinitride
44
Ionic or Covalent?: Aluminum Oxide
Ionic
Covalent
45
Physical or Chemical Property or Change?: A block of sodium cut into 2 pieces
Physical Property
Chemical Property
Physical Change
Chemical Change
46
Which of the following is NOT a quantitative physical property?
Concentration or solubility
Density
Conductivity
State of matter
47
A molecule contains 8 atoms of sulfur. This molecule is.....
A molecular element
A compound element
A compound
An elemental compound
48
How many atoms each element are contained in this molecule?
4 Hydrogens
2 Helium and 2 Oxygen
3 Hydrogen and 3 Carbon
2 Hydrogen and 2 Oxygen
49
Which of the following elements is likely the most reactive?
Sodium
Sulfur
Carbon
Lithium
50
What’s the difference between an ionic compound and a covalent compound?
Ionic has a metal and a non-metal, while covalent has 2 or more non-metals
Ionic is made up of metal and non-metal, while covalent is made up of H20
Covalent has 2 or more metals, while ionic has 2 or more non-metals
There isn't a difference
51
When a substance is dissolved in water, it is in what state of matter?
Dissolved
Liquid
Aqueous
Solid
52
Which of the following is a non-metal?
Calcium
Beryllium
Magnesium
Hydrogen
53
Physical or Chemical Property or Change?: Wood decomposing over time
Chemical Property
Chemical Change
Physical Change
Physical Property
54
NH
3
is a/an...
Ion
Ionic compound
Covalent compound
Molecular element
55
What features do the electrons in the outer-most energy level determine about an atom?
The mass of an atom
The size of the atom
The shape of the atom
The chemical properties of an atom
56
What hazard is indicated by this WHMIS symbol?
Toxic hazard
Pressurized gas hazard
Health hazard
Environmental hazard
57
What hazard is indicated by this WHMIS symbol?
Biohazard
Fire hazard
Material is harmful to health or ozone
Corrosive hazard
58
Physical or Chemical Property or Change?: Water dissociates into hydrogen peroxide and oxygen gas.
Physical Change
Chemical Change
Physical Property
Chemical Property
59
How many atoms are in a molecule of H
2
SO
4
?
3
7
5
9
60
How would the formula for tribromine tetrachloride be written?
3Br3Cl
Br3Cl4
3Br4Cl
Br4Cl3
61
Which of the following is FALSE about hydrogen?
It is a non-metal
It is on the left side of the periodic table
It has one valence electron
It is a member of the first family on the periodic table
62
Which of the following is NOT a qualitative physical property?
Lustre
Solubility
Colour
Malleability
63
Ionic or Covalent?: OF
2
Covalent
Ionic
