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1st Semester Exam 4
Test Description: Sample questions
Instructions: Answer all questions to get your test result.
1) Horizontal rows of the periodic table are called
A
periods
B
families
C
groups
D
clusters
2) A chemical symbol represents the what of an element
A
reaction
B
structure
C
name
D
type
3) particles of matter that make up protons and neutrons are
A
atoms
B
quarks
C
electrons
D
isotopes
4) dot diagrams are used to represent
A
isotopes
B
atomic number
C
outer electrons
D
the structure of the nucleus
5) Is another name for a homogeneous mixture
A
suspension
B
substance
C
liquid
D
solution
6) The shape of an apple is a
A
physical property
B
physical change
C
chemical property
D
chemical change
7) What is the melting point of ice in degrees Celsius
A
32
B
212
C
0
D
100
8) Oil and water separate into two separate layers, why is oil always above water
A
oil dissolves in water
B
water floats on oil
C
oil is less dense than water
D
water is less dense than oil
9) Three examples of a physical change
A
freezing of water, evaporation of gasoline and rusting of a nail
B
boiling water, bursting a balloon, and crumpling of a piece of paper
C
sawing of wood, crushing a can, and toasting of a marshmallow
D
burning of gasoline, rotting of an egg and exploding fireworks
10) 2 liquids have the same volume but different masses what property differs between the 2
A
conductivity
B
alkalinity
C
volume
D
Density
*select an answer for all questions
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