WorksheetsMid Summer Chemistry Test
Total questions: 50
Worksheet time: 3hrs 38mins
Name
Class
Date
1.
A state of matter with a definite volume and a definite shape is called this.
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
2.
Kim puts an ice cube in a beaker and it melts. This is a good example of:
a)
a physical change.
b)
a chemical change.
c)
an experiment.
d)
an analysis.
3.
When materials combine to form new compounds it is a chemical change. Which example is a chemical change?
a)
baking powder fizzing
b)
water boiling
c)
ice melting
d)
sugar cube dissolving
4.
Which of the following does not show a chemical change?
a)
change of state of matter
b)
color change
c)
production of a gas
d)
all show a chemical change
5.
A _____ has a definite volume but no definite shape.
a)
liquid
b)
solid
c)
weight
d)
chemical change
6.
The particles in a ____ are the farthest apart and move the fastest.
a)
gas
b)
solid
c)
banana
d)
liquid
7.
Mixtures can be ____ into the substances that make them up.
a)
separated
b)
placed
c)
melted
d)
blended
8.
Copper is a mixture.
a)
True
b)
False
9.
A homogeneous mixture has the same composition of particles throughout.
a)
True
b)
False
10.
This type of element is located on the right side of the periodic table.
a)
Metal
b)
Metalloid
c)
Non-Metals
d)
Solid
11.
The family in the periodic table that contains the most reactive metals is the_______
a)
Alkaline Earth Metals
b)
Transition Metals
c)
Alkali Metals
d)
Other Metals
12.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
13.
Particles in an atom's nucleus that are neutral and have no charge are
a)
megatrons.
b)
electrons.
c)
neutrons.
d)
protons.
14.
How many protons does an aluminium atom have? (Use the image to help you)
a)
27
b)
14
c)
40
d)
13
15.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
16.
Which one of the following atoms has the largest radius?
a)
O
b)
F
c)
S
d)
Cl
17.
Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?
a)
O < F < S < Mg < Ba
b)
F < O < S < Mg < Ba
c)
F < O < S < Ba < Mg
d)
O < F < S < Ba < Mg
18.
Of the atoms below, __________ is the most electronegative.
a)
Si
b)
Cl
c)
Rb
d)
Ca
19.
In general, as you go across a period in the periodic table from left to right: (1) the atomic radius __________; (2) the electronegativity __________; and (3) the first ionization energy __________.
a)
decreases, decreases, increases
b)
increases, increases, decreases
c)
increases, increases, increases
d)
decreases, increases, increases
20.
What is this element?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
21.
What is this element?
[Xe] 6s15d10
[Xe] 6s15d10
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
22.
Which of the following is the smallest in size?
a)
N3-
b)
O2-
c)
F-
d)
Na+
23.
Which of the following would have two pairs of electrons in a Lewis Dot structure?
a)
Sulfur
b)
Magnesium
c)
Helium
d)
Silicon
24.
How many dots would a Lewis Dot structure of Helium have?
a)
1
b)
2
c)
8
d)
0
25.
What is the formula for calcium phosphide?
a)
CaP
b)
Ca2P3
c)
Ca3P2
d)
Ca2P
26.
AlCl3 is called...
a)
aluminum chlorine
b)
aluminide chloride
c)
aluminum trichloride
d)
aluminum chloride
27.
Ionic bonds are formed when one atom gives electrons to another atom.
a)
True
b)
False
28.
Which of the following could form an ionic bond with sulfur?
a)
Oxygen
b)
Iodine
c)
Arsenic
d)
Magnesium
29.
Ionic bonds can be formed between two nonmetals.
a)
True
b)
False
30.
What is the mass number of this atom?
a)
4
b)
5
c)
9
d)
none of the above
31.
Balance the following reaction:
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
a)
4,10,2,1
b)
2,5,4,2
c)
1,2,2,1
d)
4,10,2,2
32.
Balance the following reaction:
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
a)
1,2,1,2
b)
2,1,1,2
c)
1,2,1,1
d)
1,2,2,2
33.
Write the formula when Al and O bond?
a)
Al3O2
b)
AlO
c)
Al2O3
d)
O2Al3
34.
How do the following two elements bond together?
K1+ S2-
K1+ S2-
a)
KS
b)
K8S
c)
K6S3
d)
K2S
35.
How do the following two elements bond together?
K1+ S2-
K1+ S2-
a)
KS
b)
K8S
c)
K6S3
d)
K2S
36.
How do the following two elements bond together?
Al3+ O2-
Al3+ O2-
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
37.
Calculate the mass of iron in a sample of iron ore containing 2.61x1023 iron atoms.
a)
0.433g
b)
24.2g
c)
44g
d)
6.02g
38.
Calculate the % composition by mass of oxygen present in H2SO4.
a)
16.3%
b)
65.25%
c)
32.6%
d)
57.14%
39.
What is the molar mass of calcium hydroxide, Ca(OH)2?
a)
74.1 g/mole
b)
57.1 g/mole
c)
58.1 g/mole
d)
none of the above
40.
How many moles are in 98.3 g of Aluminum Hydroxide?
a)
2.14 mol
b)
1.26 mol
c)
6.63 mol
d)
5.9 mol
41.
What is the mass of 2.50 mol of oxygen gas O2?
a)
40 g
b)
80 g
c)
16 g
d)
32 g
42.
What is the pH of a solution if [OH-] = 1.0 x 10-5M?
a)
5.00
b)
7.00
c)
9.00
d)
11.00
43.
What is the pH of a solution if [H+] = 6.0 x 10-10 M?
a)
3.45
b)
6.25
c)
9.22
d)
11.34
44.
Which of the following is a property of an acid?
a)
pH > 7
b)
turns litmus paper blue
c)
tart or sour taste
d)
corrosive to organic materials
45.
Which of the following is a property of bases?
a)
a pH < 7
b)
slippery feel
c)
tart or sour taste
d)
corrosive to metals
46.
pH less than 7.
a)
Acids
b)
Bases
c)
All
47.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
48.
Forms hydroxide ions (OH-) in water
a)
Acids
b)
Bases
c)
All
49.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
50.
Which statement is NOT true about acids?
a)
conduct electricity well
b)
turn red litmus paper blue
c)
ionize completely in water
100 %
