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Unit 3 Review
Test Description: Unit 3 review for final exam
Instructions: Answer all questions to get your test result.
1) The bond formed between a metal and a non-metal when a metal transfers an electron to a nonmetal is...
A
a molecular bond
B
a covalent bond
C
a physical bond
D
an ionic bond
2) The atomic number is the SAME as an atom's
A
number of positrons
B
atomic mass
C
number of neutrons
D
number of protons
3) An example of a homogeneous mixture is...
A
butter
B
caeser salad
C
chocolate chip cookies
D
pepperoni pizza
4) Which of the following describes a chemical reaction?
A
burning, rusting, dying
B
cutting, condensing, boiling
C
tearing, baking, adding ingredients
D
melting, freezing, evaporating
5) A solute is different than a solvent because a SOLUTE...
A
is the thing that dissolves another substance. ex: water
B
is the thing that creates a chemical reaction. ex: heat
C
is the thing that is getting dissolved. ex: sugar
D
is always a liquid. ex: coffee
6) Water heated to a temperature of 212 F. Large bubbles form and rise to the top of the pan. This is an example of...
A
boiling
B
simmering
C
steaming
D
blanching
7) An example of a BASE is
A
Coffee
B
Orange Juice
C
Soda
D
Laundry Detergent
8) What of the following describes an ACID?
A
Acids are slippery
B
Acids donate hydroxide (OH-) ions in solution
C
Acids are bitter tasting
D
Acids donate hydrogen (H+) ions in solution
9) Which of the following is NOT a job of water?
A
A temperature control unit
B
An acid/base indicator
C
A medium for heat transfer
D
A universal solvent
10) The phase where substances do not have a definite volume or shape and where particles spread to fit the container is known as...
A
liquid
B
synthetic
C
gas
D
solid
*select an answer for all questions
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