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CBA 1 Review

Total questions: 35

Worksheet time: 20mins

Name
Class
Date
1.

How many elements are found in the compound below?


NaHCO3

a)

6

b)

5

c)

4

d)

3

2.

Which of the following is representative of an element?

a)

H20

b)

CH4

c)

CO2

d)

Na

3.

Which of the following is a compound?

a)

Co

b)

CO2

c)

Na

d)

H

4.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
5.

This is made up of one or more of the SAME kind of atom

a)

Element

b)

Mixture

c)

Compound

d)

Matter

6.
A pure substance that cannot be separated into simpler substances by chemical or physical means.  
a)
Element
b)
Compound
c)
Mixture
d)
Chemical
7.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
8.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
9.

What is true about ALL chemical changes?

a)

They all produces gas/bubbles/fizzing

b)

They all have a temperature change (hotter/colder)

c)

They all change colors

d)

They all produce NEW and DIFFERENT substances

10.

A teacher shows the class two liquids that are both odorless and clear. When they mix together, solid gold chunks are formed. What change occurred and how do you know?

a)

A chemical change because a precipitate was formed

b)

A physical change because there was a color change

c)

A chemical change because an odor was produced

d)

A physical change because the volume increased when the two liquids were mixed together.

11.

A teacher shows the class two liquids that are both odorless and clear. When they mix together, solid gold chunks are formed. What change occurred and how do you know?

a)

A chemical change because a precipitate was formed

b)

A physical change because there was a color change

c)

A chemical change because an odor was produced

d)

A physical change because the volume increased when the two liquids were mixed together.

12.

In class, a teacher places a balloon filled with baking soda over a flask filled with vinegar. When the powder falls into the flask and combines with the vinegar, the balloon inflates (fills up with air). What evidence is there that a chemical change occurs?

a)

The powder and liquid combine

b)

A gas is produced that fills up the balloon.

c)

There is no evidence that a chemical reaction to place

d)

The powder stayed solid so it is considered a precipitate

13.

When I go to Chipotle I love to order guacamole. It smells amazing and tastes even better! Unfortunately, sometimes I don't eat it fast enough and it turns brown. Stirring it up hides the brown, but if it sits out longer, it continues to change. What indicates a chemical reaction in this scenario?

a)

The guacamole smells amazing

b)

The guacamole tastes incredible

c)

The guacamole turns a yucky brown color

d)

I stir the guacamole to get rid of the brown

14.
Malleability is ___________
a)
the way light is reflected off a surface.
b)
how well a piece of matter conducts electricity
c)
A.  the capability of being drawn out into thin wires or threads.
d)
the capability of being hammered out thin.
15.
Luster is ___________
a)
A.  the way light is reflected off a surface.
b)
A.  how well a piece of matter conducts electricity. 
c)
A.  the capability of being drawn out into thin wires or threads.
d)
A.  the capability of being hammered out thin.
16.
Conductivity is ___________
a)
the way light is reflected off a surface.
b)
how well a piece of matter conducts electricity. 
c)
the capability of being hammered out thin
d)
A.  the capability of being drawn out into thin wires or threads.
17.
Which of these grouping of elements could have the characteristic of luster (shiny)?
a)
Metal
b)
Nonmetal
c)
metalloids
d)
Both metals and metalloids
18.
Which of these grouping of elements could have the characteristic of brittle?
a)
Metal
b)
Nonmetal
19.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
20.
All of the following would classify an element as a metal except?
a)
Dull
b)
Luster
c)
Malleable
d)
Hard
21.

If the graduated cylinder had 10 mL of water before a marble was placed in it, what is the volume of the marble?

a)

10 mL

b)

13 mL

c)

3 mL

d)

5 mL

22.

If a substance had a mass of 27g and a volume of 10mL, which substance could it be?

a)

Aluminum

b)

Iron

c)

Lead

d)

Tin

23.

What is the density of object A?

a)

2.5 g/cm^3

b)

2 g/cm^3

c)

1 g/cm^3

d)

4 g/cm^3

24.

What is the volume of the rock?

a)

40 cm3

b)

100 cm3

c)

125 cm3

d)

200 cm3

25.

What is the formula for density?

a)

Density = Mass/Volume

b)

Density = Volume/Mass

c)

Density = Mass x Volume

d)

Density = Volume x Mass

26.

What substance is the least dense?

a)

Vinyl Resin

b)

Chloroform

c)

Polycarbonate Resin

d)

Fluorite

27.

What is the volume of displacement?

a)

1.6 mL

b)

3.4 mL

c)

5.0 mL

d)

8.4 mL

28.
The color of a mineral in powder form is called the mineral's 
a)
hardness
b)
specific gravity
c)
luster
d)
streak
29.
How light reflects off of a mineral is called the mineral's 
a)
luster
b)
streak
c)
cleavage
d)
fracture
30.
The following image shows what mineral property?
a)
Hardness
b)
Streak
c)
Cleavage
d)
Density
31.
Using this chart of the Mohs Hardness Scale, answer the following question: A certain mineral sample cannot scratch apatite, but apatite can scratch the sample. Which of the following is most likely the mineral’s hardness?
a)
4
b)
6
c)
8
d)
10
32.
Information on several minerals is given in this table. If one were to observe samples of the minerals from the table, which two would appear similar in color, but could be distinguished, one from the other, using a streak test?
a)
Hematite and Stantinite
b)
Chalcopyrite and Platinum
c)
Acanthite and Stantinite
d)
Chalcopyrite and Biotite
33.
The table provides information on four minerals. A mineral sample has a metallic luster, is black in color, and has a hardness of 6. Which of the minerals in the table is a reasonable identification for this mineral sample?
a)
Pyrite
b)
Graphite
c)
Hematite
d)
Calcite
34.
This table provides information on two minerals. Which property would allow a geologist to distinguish a sample of feldspar from rose quartz?
a)
Color
b)
luster
c)
hardness
d)
streak
35.
The table provides information on both pyrite and gold. Pyrite is sometimes confused with gold. Some of the properties listed could help someone distinguish between pyrite and gold. Gold will be the only mineral that has which of the following properties?
a)
Yellow color
b)
Metallic luster
c)
Hardness of 3
d)
Black streak

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