Classification of matter
Questions and Answers

1.
Is Mercury an element, compound, or mixture?
o
A.
Element
o
B.
Compound
o
C.
Mixture

2.
Is table salt, sodium chloride, an element, a compound or a mixture?
o
A.
Element
o
B.
Compound
o
C.
Mixture

3.
Is pure water an element, compound or a mixture?
o
A.
Element
o
B.
Compound
o
C.
Mixture

4.
What type of a mixture is Coffee?
o
A.
A homogeneous mixture
o
B.
A heterogeneous mixture

5.
What type of mixture is air?
o
A.
Heterogeneous mixture
o
B.
Homogeneous mixture

6.
Tap water is a ____ mixture.
o
A.
Homogeneous
o
B.
Heterogeneous

7.
Gold is a
o
A.
Element
o
B.
Compound
o
C.
Mixture

8.
Carbon Dioxide is a
o
A.
Element
o
B.
Compound
o
C.
Mixture

9.
Vegetable Soup is a
o
A.
Compound
o
B.
Element
o
C.
Heterogeneous mixture
o
D.
Homogeneous mixture

10.
Iron is a
o
A.
Element
o
B.
Compound
o
C.
Mixture

11.
Water can boil at 100 degrees celsius. What type of change is this?
o
A.
A chemical change
o
B.
A physical change

12.
Water can be separated into hydrogen and oxygen by electrolyisis.
o
A.
This is a physical change
o
B.
This is a chemical change

13.
When sugar dissolves into water...
o
A.
This is a chemical change
o
B.
This is a physical change

14.
Vinegar reacts with baking soda to create a brand new gas (Carbon
Dioxide)
o
A.
This is a chemical change
o
B.
This is a physical change

15.
Gasoline burns in the presence of oxygen.
o
A.
This is a chemical change
o
B.
This is a physical change

16.
Iron rusts, producing a layer of oxide on the outside of the metal.
o
A.
This is a physical change
o
B.
This is a chemical change
Atoms, Elements, Molecules & Compounds
Questions and Answers

1.
All matter consists of particles called________________.
o
A.
Units
o
B.
Atoms
o
C.
Cubes
o
D.
Pints

2.
Atoms consist of parts called protons, neutrons,
and___________________.
o
A.
Electrons
o
B.
Haptons
o
C.
Neptons
o
D.
Wontons

3.
Each proton has a ______________ electrical charge.
o
A.
Positive
o
B.
Negative
o
C.
Neutral
o
D.
Shocking

4.
Each electron has a ________________ electrical charge.
o
A.
Positive
o
B.
Negative
o
C.
Neutral
o
D.
Shocking

5.
Each neutron has an electrically _________________ charge.
o
A.
Positive
o
B.
Negative
o
C.
Neutral
o
D.
Shocking

6.
The nucleus of an atom contains protons and _________________.
o
A.
Electrons
o
B.
Haptons
o
C.
Neutrons
o
D.
Wontons

7.
Electrons move around _______________ the nucleus.
o
A.
Inside
o
B.
Outside
o
C.
On top of
o
D.
Without

8.
An element is determined by the number of ___________________ (also
known as its atomic number).
o
A.
Neutrons
o
B.
Electrons
o
C.
Protons
o
D.
Wontons

9.
The modern periodic table is organized by _________________ atomic
number.
o
A.
Increasing
o
B.
Decreasing
o
C.
Reducing
o
D.
Developing

10.
A ___________________ is a combination of two or more atoms that are
held together by covalent bonds.
o
A.
Moles
o
B.
Ions
o
C.
Molecules
o
D.
Megatrons
Mixtures, Elements & Compounds
Questions and Answers

1.
An alloy is:
o
A.
A compound
o
B.
A solution of metals
o
C.
A solution of gases

2.
In sweetened tea, the sugar is called a:
o
A.
Solute
o
B.
Solution

3.
The substance that does the dissolving (the tea), is called a:
o
A.
Solute
o
B.
Solvent

4.
Na is the chemical symbol for:
o
A.
Sodium
o
B.
Tin
o
C.
Nebraska

5.
C is the chemical symbol for:
o
A.
Calcium
o
B.
Carbon
o
C.
Chlorine

6.
A mixture is two or more substances. It __________ be separated.
o
A.
Can
o
B.
Can not

7.
Are mixtures chemically combined?
o
A.
Yes
o
B.
No

8.
An Element is a simple pure substance. It __________ be separated?
o
A.
Can
o
B.
Can not

9.
A _______________ is two or more elements that are chemically
combined.
o
A.
Element
o
B.
Compound
o
C.
Mixture

10.
A compound __________ be separated?
o
A.
Can
o
B.
Can not

11.
Are compounds chemically combined?
o
A.
Yes
o
B.
No

12.
Carbon Dioxide (CO2) is an ELEMENT?
o
A.
True
o
B.
False

13.
An element can be broken down by physical or chemical means.
o
A.
True
o
B.
False

14.
Elements, compounds and mixtures are pure substances.
o
A.
True
o
B.
False

15.
Frying pans are usually made from non-metals because non-metals are
good conductors of heat.
o
A.
True
o
B.
False

16.
Helium, which is put in balloons, is less dense than air.
o
A.
True
o
B.
False

17.
A compound has different properties than the elements that react to form it.
o
A.
True
o
B.
False

18.
Sugar water is an example of a heterogeneous mixture.
o
A.
True
o
B.
False

19.
Colloids are mixtures that will settle out.
o
A.
True
o
B.
False

20.
The chemical symbol for Mercury is HG.
o
A.
True
o
B.
False

21.
One example of changing a substance chemically is:
o
A.
Filtering it
o
B.
Burning it
o
C.
Boiling it

22.
A person may put the following on his or her french-fries:
o
A.
NaCl
o
B.
Sn
o
C.
HCl

23.
If a solute is unable to be dissolved in a given solvent, the solute is said to
be:
o
A.
Indissolveable
o
B.
Soluble
o
C.
Insoluble

24.
If a drink container tells you to "SHAKE WELL" before drinking, the mixture
in the container is most likely a:
o
A.
Solution
o
B.
Suspension
o
C.
Colloid

25.
A _________ ____________ is made of only one type of particle.
o
A.
Pure substance
o
B.
Compound
o
C.
Solution
Matter is anything that has mass and volume. Which of the following is
not a matter?
a) Air
b) Water
c) Table
d) Light
Which of the following substances exist in the liquid state at room
temperature?
a) Iron
b) Air
c) Oil
d) Sand
Matter can change its physical state depending on temperature. What
happens if water is cooled?
a) Water changes into water vapor.
b) Water changes from liquid state into solid state.
c) Water changes from solid state into liquid state.
d) Water vapor changes into water.
When water is heated, it changes into ...........
a) Ice
b) Solid state
c) Liquid state
d) Water vapor
Liquids
a) Take the shape of their containers.
b) Fill all the space available.
c) Have definite shape.
d) Have no definite volume.
A substance (X) fills all the space available. It exists in the ........... at
room temperature.
a) Solid state
b) Liquid state
c) Gaseous state
d)
A pure substance consists only of one substance. Which of the following
is not a pure substance?
a) Water
b) Air
c) Sugar
d) Iron
A mixture consists of many substances. Which of the following is not a
mixture?
a) Sea water
b) Salad
c) Oxygen gas
d) Carbonated drink "Pepsi"
Mixtures can be homogeneous or heterogeneous. A homogeneous
mixture is formed of:
a) One phase.
b) Two phases.
c) Three phases.
d) Many phases.
Muddy water is a:
a) Pure substance.
b) Homogeneous mixture.
c) Heterogeneous mixture.
d)