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Grade 10 Chemistry Exam Review Flashcards | StudBud
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Grade 10 Chemistry Exam Review
Grade 10 Chemistry Exam Review
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1
What is the chemical formula for sodium sulfide?
Na2S
So2S
NaS
NaS2
2
Which of the following is NOT a property of ionic compounds?
relatively low boiling point
conducts electricity when dissolved in water
relatively high melting point
all of the above are properties of ionic compounds
3
What is the chemical formula for dinitrogen pentoxide?
N2O3
2N5O
N5O2
N2O5
4
What is the chemical name for Be
3
(PO
4
)
2
?
Triberyllium diphosphate
none of the above
Beryllium phosphorus oxide
Beryllium phosphorus tetroxide
5
How many more times is a substance of pH 3 more acidic than a substance of pH 7?
4
4000
40
10000
6
When we balance chemical equations, we are obeying
the Law of Conservation of Energy
the Law of Conversation of Atoms
our parents
the Law of Conservation of Mass
7
Neutralization reaction is a special type of which reaction?
Double Displacement
Synthesis
Single Displacement
Combustion
8
Which of the following is an example of a physical change?
Boiling water
All of the above
Cutting paper
Molding clay
9
Which of the following is the correct Lewis Diagram for Carbon?
II
I
IV
III
10
Which of the following is an indicator that a chemical change has occurred?
Formation of precipitate
Change in shape
Change in state
All of the above
11
What is the chemical name for AlBr
3
?
aluminium bromide
aluminium bromine
aluminium tribromine
aluminium tribromide
12
The products of a complete combustion of hydrocarbon are:
H2O and CO2
H2O, CO2, CO and C
H2O and CO
H2O, CO2 and CO
13
What is the chemical formula for disulfur dichloride?
SCl
2S2Cl
S2Cl2
SCl2
14
When a compound is aqueous, it means the compound is
neutral
covalent
dissolved in water
blue
15
When doing a lab, it is good practice for the chemist to...
tie long hair back
do all of the above
wear open toe shoes
wear sunglasses to protect their eyes
16
When is your chemistry exam?
Thursday, June 15
Friday, June10
Wednesday, June 14
Saturday, June 11
17
What is the chemical name for H
3
N (aq)?
Nitrogen Acid
Hydrogen nitride acid
Nitric acid
Hydronitric acid
18
Which of the following are diatomic elements?
O, F, H, Cl
H, Ne, He, Xe
Cl, Br, S, He
O, S, N, F
19
Nitrogen gas + Hydrogen gas → Ammonia is an example of what type of reaction?
Synthesis
Combustion
Displacement
Decomposition
20
What type of reaction will occur when magnesium solid is added to hydrochloric acid?
single displacement
combustion
double displacement
neutralization
21
A compound held together by ionic bonds is called
Ionic compound
Covalent compound
Molecule
none of the above
22
What is the name for NH
3
?
ammonia
Nitrogen trihydride
Nitrogen hydride
two of the above
23
An ionic bond is an electrostatic attractive force between
a cation and an anion
2 non-metals
a metal and a non-metal
2 metals
24
The coefficient in front of H
2
when N
2
+ H
2
→ NH
3
is balanced is
4
3
2
1
25
What is the chemical name of H
2
S (aq)?
Sulfuric acid
Dihydrogen sulfide
Hydrosulfuric acid
Hydrogen sulfide
26
"Hydrogen gas + Oxygen gas → liquid water" is an example of a(n)
Word Equation
Balanced Equation
Unbalanced Equation
Skeleton Equation
27
What is the chemical name for H
2
CO
3
(aq)?
Hydrocarbonic acid
Carbonic acid
Carbonate acid
Dihydrogen carbonate
28
The sharing of outer electrons between non-metals results in...
ionic bond
love
polyatomic ions
covalent bond
29
The higher the pH of a solution, the higher the concentration of...
H2O
H+
atoms
OH-
30
Which of the following is a base?
all of the above
Mg(OH)2 (aq)
NaOH (aq)
NaHCO3 (aq)
31
The most reactive metal group in the periodic table is...
the alkali metals
transition metals
the alkali-earth metals
heavy metals
32
What is the chemical formula for magnesium sulfate?
MgS
MgSO4
Mg2(SO4)2
Mg4(SO)2
33
Which of the element would be a halogen?
Y
X
Z
W
34
What is the chemical formula for ammonium nitrate?
NH3NO4
none of the above
NH4NO3
NO3NH4
35
Which of the following is NOT a property of an acid?
Contains H+ ions
Good conductors of electricity
All are properties of acids
Tastes bitter
36
How many elements are there in 6 H
2
O?
3
2
6
18
37
How many atoms are in the compound Mg
3
(PO
4
)
2
?
13
12
3
10
38
When an acid reacts with a base, what are the products formed?
Water and a salt
Water and Hydrogen Gas
Water and NaCl
NaCl and a salt
39
Which of the following is NOT true about covalent compounds?
it does not conduct electricity
all of the above are true
some dissolves in water
it can be solid, liquid or gas in room temperature
40
The coefficients in front of H
2
O when H
2
SO
4
+ Pb(OH)
4
→ Pb(SO
4
)
2
+ H
2
O is balanced is:
3
2
1
4
