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2D Chemistry Review Flashcards | StudBud
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2D Chemistry Review
2D Chemistry Review
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Answers
1
What is the chemical name of H
2
S (aq)?
Sulfuric acid
Hydrosulfuric acid
Dihydrogen sulfide
Hydrogen sulfide
2
What is the chemical name for Be
3
(PO
4
)
2
?
Beryllium phosphorus tetroxide
Beryllium phosphorus oxide
none of the above
Triberyllium diphosphate
3
What is the chemical name for H
3
N (aq)?
Nitrogen Acid
Nitric acid
Hydrogen nitride acid
Hydronitric acid
4
Nitrogen gas + Hydrogen gas → Ammonia is an example of what type of reaction?
Displacement
Synthesis
Combustion
Decomposition
5
Which of the following is an indicator that a chemical change has occurred?
All of the above
Formation of precipitate
Change in shape
Change in state
6
What type of reaction will occur when magnesium solid is added to hydrochloric acid?
double displacement
neutralization
combustion
single displacement
7
"Hydrogen gas + Oxygen gas → liquid water" is an example of a(n)
Skeleton Equation
Balanced Equation
Word Equation
Unbalanced Equation
8
An ionic bond is an electrostatic attractive force between
a cation and an anion
2 metals
a metal and a non-metal
2 non-metals
9
Which of the following is NOT true about covalent compounds?
it does not conduct electricity
some dissolves in water
all of the above are true
it can be solid, liquid or gas in room temperature
10
What is the chemical formula for dinitrogen pentoxide?
2N5O
N2O3
N2O5
N5O2
11
What is the chemical formula for magnesium sulfate?
Mg2(SO4)2
Mg4(SO)2
MgSO4
MgS
12
Which of the following is a base?
Mg(OH)2 (aq)
NaHCO3 (aq)
NaOH (aq)
all of the above
13
Which of the following metals are the most reactive?
lithium
potassium
rubidium
sodium
14
A compound held together by ionic bonds is called
none of the above
Covalent compound
Ionic compound
Molecule
15
How many atoms are in the compound Mg
3
(PO
4
)
2
?
13
10
3
12
16
When is your chemistry test?
Friday, Oct 16
Thursday, Oct 15
Saturday, Oct 17
Wednesday, Oct 14
17
The coefficients in front of H
2
O when H
2
SO
4
+ Pb(OH)
4
→ Pb(SO
4
)
2
+ H2O is balanced is:
1
4
2
3
18
What is the chemical formula for sodium sulfide?
NaS
Na2S
NaS2
So2S
19
What is the chemical name for H
2
CO
3
(aq)?
Dihydrogen carbonate
Carbonic acid
Hydrocarbonic acid
Carbonate acid
20
The most reactive metal group in the periodic table is...
the alkali-earth metals
transition metals
heavy metals
the alkali metals
21
The coefficient in front of H
2
when N
2
+ H
2
→ NH
3
is balanced is
3
1
2
4
22
Neutralization reaction is a special type of which reaction?
Combustion
Synthesis
Double Displacement
Single Displacement
23
Which of the following are diatomic elements?
H, Ne, He, Xe
O, F, H, Cl
O, S, N, F
Cl, Br, S, He
24
What is the chemical formula for disulfur dichloride?
SCl2
2S2Cl
SCl
S2Cl2
25
What is the chemical name for AlBr
3
?
aluminium bromine
aluminium tribromine
aluminium bromide
aluminium tribromide
26
Which of the following is the correct Lewis Diagram for Carbon?
IV
II
I
III
27
The sharing of outer electrons between non-metals results in...
ionic bond
polyatomic ions
love
covalent bond
28
The higher the pH of a solution, the higher the concentration of...
OH-
H2O
atoms
H+
29
Which of the following is NOT a property of ionic compounds?
conducts electricity when dissolved in water
all of the above are properties of ionic compounds
relatively low boiling point
relatively high melting point
30
Which of the following is NOT a property of an acid?
All are properties of acids
Tastes bitter
Contains H+ ions
Good conductors of electricity
31
When an acid reacts with a base, what are the products formed?
Water and a salt
NaCl and a salt
Water and Hydrogen Gas
Water and NaCl
32
How many elements are there in 6 H
2
O?
18
3
2
6
33
The products of a complete combustion of hydrocarbon are:
H2O and CO
H2O, CO2, CO and C
H2O, CO2 and CO
H2O and CO2
34
When we balance chemical equations, we are obeying
our parents
the Law of Conservation of Energy
the Law of Conversation of Atoms
the Law of Conservation of Mass
35
When doing a lab, it is good practice for the chemist to...
wear sunglasses to protect their eyes
tie long hair back
do all of the above
wear open toe shoes
36
What is the chemical formula for ammonium nitrate?
none of the above
NH3NO4
NO3NH4
NH4NO3
37
Which of the following is an example of a physical change?
Cutting paper
All of the above
Molding clay
Boiling water
38
When a compound is aqueous, it means the compound is
blue
covalent
neutral
dissolved in water
39
How many more times is a substance of pH 3 more acidic than a substance of pH 7?
10000
40
4000
4
40
Which of the element would be a halogen?
Z
Y
X
W
41
When a chemical reaction requires more energy than it produces, this reaction is
not balanced
exothermic
endothermic
not going to happen
42
What is the name for NH
3
?
two of the above
Nitrogen hydride
ammonia
Nitrogen trihydride
