WorksheetsChemistry Part 2 Review
Total questions: 38
Worksheet time: 38mins
Name
Class
Date
1.
Which of the following would NOT be considered matter? Select all that apply.
a)
Carbon dioxide gas bubbles from a reaction
b)
Sodium bicarbonate powder in a cup
c)
Vinegar in a graduated cylinder
d)
Heat from a candle
e)
Light from the Sun
2.
Which of the following correctly defines mass?
a)
Mass is the measure of the amount of matter in an object.
b)
Mass is the measure of the effect of gravity on an object.
c)
Mass is the measure of the amount of space an object takes up.
d)
Mass is the ratio of the weight to the volume of an object
3.
True or False: If two objects have the same volume, the one with the greater mass will have the smaller density.
a)
True
b)
False
4.
Which property could be used to accurately identify a substance?
a)
mass
b)
weight
c)
density
d)
volume
5.
The measurement of the acidity of a substance is known as its ___.
a)
ability to rust
b)
flammability
c)
pH
d)
reactivity
6.
The ability of a substance to be formed into a wire is called ___.
a)
brittle
b)
ductile
c)
magnetism
d)
malleable
7.
The temperature at which a liquid changes into a gas is known as its ____.
a)
boiling point
b)
condensation point
c)
freezing point
d)
melting point
8.
Which TWO of the following are TRUE statements?
a)
Conductors are materials which allow current/heat to flow easily.
b)
Insulators are materials which allow current/heat to flow easily.
c)
Most metals are considered insulators.
d)
Most metals are considered conductors.
9.
Which of the following statements is true?
a)
Ductile, malleable, and solid at room temperature describes most metals.
b)
Metals tend to have low melting points, are malleable, and are gases at room temperatures.
c)
Metalloids have all of the nonmetal characteristics except for one because they're gases at room temperature.
d)
Shiny luster, easily rust, and high density are common characteristics of nonmetals.
10.
Which process is an example of a chemical change?
a)
chopping a tree
b)
cooking a steak
c)
drying clothes in the dryer
d)
heating up a cup of tea
11.
True or False: Changes in size or shape would be considered chemical changes because the composition of the substance did not change.
a)
True
b)
False
12.
Which of the following would be categorized as a physical change? (Select all that apply.)
a)
Apples turn brown when they react with the oxygen in the air.
b)
A rubber band is stretched to the point where it breaks.
c)
Iron turns to a reddish-brown when it rusts.
d)
An aluminum can is crushed.
e)
Water vapor sublimates into frost on a windshield.
13.
In the laboratory, Austin is given a mixture of iron filings, sand, and salt. To separate the mixture, Austin uses a magnet, boiling water, and a filter. Which statement is true about the process Austin uses to separate this mixture?
a)
He uses only chemical changes to separate the mixture's components.
b)
He uses only physical changes to separate the mixture's components.
c)
He uses both physical and chemical changes to separate the mixture's components.
d)
He uses neither physical nor chemical changes to separate the mixture's components.
14.
Which statement indicates that a chemical reaction has taken place?
a)
A loud noise is produced by a crushing can.
b)
A puddle is produced by melting an ice cube.
c)
An odor is produced by burning a sugar cube.
d)
A shard (sharp piece) of glass is produced by breaking a bottle.
15.
Which process is an example of a chemical change?
a)
Salt mixes with water and dissolves.
b)
An aspirin tablet is crushed into a fine powder.
c)
Water droplets form on the outside of a cold drink glass.
d)
An antacid tablet is added to water and bubbles are produced.
16.
A student observed a precipitate form during a chemical reaction. Which of the following did the student most likely observe?
a)
Bubbles of a gas floated to the top of a solution.
b)
The color of a liquid changed when a solid was added to it.
c)
A solid sank to the bottom of a container when two liquids were mixed.
d)
Steam rose from a flask when a powder was added to a liquid.
17.
True or False: Solubility is a chemical property.
a)
True
b)
False
18.
If a substance dissolves, quickly without a lot of effort, it is said to have/be ___.
a)
high solubility
b)
insoluble
c)
low solubility
19.
When making a solution, the ______.
a)
solvent gets dissolved into the solute
b)
solute gets dissolved into the solvent
20.
Which of the following is NOT a factor which can affect the chemical reaction rate?
a)
state of matter
b)
surface area
c)
temperature
d)
use of a catalyst
21.
Which of the following statements are true about the reaction rates of cooked eggs? Select the two (2) which apply.
a)
Increasing the temperature causes the reaction to occur more quickly.
b)
Increasing the temperature causes the reaction to occur more slowly.
c)
Increasing the temperature causes the eggs' particles to lose energy and move more slowly.
d)
Increasing the temperature causes the eggs' particles to have more energy and move faster.
22.
Samples of baking soda and vinegar at room temperature are mixed together. The resulting solution has a lower temperature than the original temperature of the vinegar. Which statement correctly describes how the system could be modified so that thermal energy is absorbed faster?
a)
Decrease the amount of baking soda used.
b)
Increase the concentrations of the chemicals used.
c)
Increase the size of the container used.
d)
Decrease the temperature of the environment around the reaction.
23.
The diagram shows what happens before and after two unknown substances are mixed. What can be inferred about the chemical reaction that has occurred?
a)
The reaction is endothermic, which is a chemical change.
b)
The reaction is endothermic, which is a physical change.
c)
The reaction is exothermic, which is a chemical change.
d)
The reaction is exothermic, which is a physical change.
24.
A high-quality sleeping bag will keep you warm even during a winter camping trip in the mountains. How do you stay warm when the air around you is very cold?
a)
The sleeping bag produces thermal energy that keeps you warm.
b)
The sleeping bag transfers thermal energy from the air to your body.
c)
The sleeping bag slows the transfer of thermal energy produced by your body into the surrounding air.
d)
The sleeping bag increases the production of thermal energy by your body.
25.
When thermal energy is transferred, energy flows from ______.
a)
cooler objects to warmer objects
b)
warmer objects to cooler objects
26.
The transfer of energy through electromagnetic waves is called ____.
a)
conduction
b)
convection
c)
radiation
27.
Which of the following is the FALSE statement about convection?
a)
Cooler air is more dense than warmer air.
b)
Cooler air pushes up on the warmer air and pushes the warmer air back down.
c)
Liquids and gases can do this, but not solids.
d)
The circulation of the fluid transfers energy to different locations and the movement creates convection currents.
28.
Using water displacement, how would you calculate the volume of the ring?
a)
V = 68 ml - 64 ml
b)
V = 64 ml + 68 ml
c)
V = 68 ml x 64 ml
d)
V = 68 ml / 64 ml
29.
How would you calculate the volume of the fish using displacement?
a)
V = 38 ml x 32 ml
b)
V = 38 ml / 32 ml
c)
V = 38 ml - 32 ml
d)
V = 32 ml + 38 ml
30.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
31.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
32.
I have two objects with the same volume but different masses. Which object will be more dense?
a)
The object with less weight.
b)
The object with more weight.
c)
The object with more mass.
d)
The object with less mass.
33.
What is the transfer of heat by direct contact? (a)
Choose from the below words
Convection
Electromagnetic waves
Radiation
Conduction
34.
a)
conduction
1.
ironing a shirt
b)
convection
2.
boiling water
c)
radiation
3.
warming up by a bonfire
35.
When a frying pan is touching a stove that is on, what heat transfer is happening?
a)
Radiation
b)
Conduction
c)
density
d)
Convection
36.
The ability of a substance to react quickly with oxygen to produce light and heat.
a)
flammability
b)
rust
c)
pH
d)
magnetism
37.
If I dissolve sugar in water, what is the solute?
a)
Water
b)
Hydrogen
c)
Sugar
d)
Carbon
38.
The temperature at which a solid becomes a liquid is known as ____
a)
boiling point
b)
freezing point
c)
melting point
d)
condensation point
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