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Science-Ch.7. Part 2
Test Description: Chemical Reactions
Instructions: Answer all questions to get your test result.
1) Archemedes' Principle helps to explain the relationship between ________________________.
A
temperature and demsity
B
buoyancy and density
C
kinetic energy and density
D
pressure and density
2) Pascal's Principle can be applied to ______________.
A
all states of matter
B
solids and liquids only
C
any matter that can flow
D
solids and gases only
3) All of the following are examples of physical properties EXCEPT _______________.
A
density
B
ability to react with oxygen
C
shape
D
color
4) All of the following are examples of physical changes except ______________.
A
evaporating
B
solidifying
C
burning
D
melting
5) Each substance written to the right of the arrow in a chemical equation is a __________________________.
A
reactant
B
precipitate
C
product
D
catalyst
6) What is the neutral particle that is formed when atoms share electrons?
A
ionic compound
B
molecule
C
nucleus
D
caution
7) Dot diagrams are used to represent ___________________.
A
protons
B
the structure of the nucleus
C
atomic mass
D
outer electrons
8) x
A
x
B
x
C
x
D
x
9) x
A
x
B
x
C
x
D
x
10) x
A
x
B
x
C
x
D
x
*select an answer for all questions
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