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