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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 covalent bond
B
a molecular bond
C
a physical bond
D
an ionic bond
2) The atomic number is the SAME as an atom's
A
atomic mass
B
number of positrons
C
number of neutrons
D
number of protons
3) An example of a homogeneous mixture is...
A
caeser salad
B
butter
C
pepperoni pizza
D
chocolate chip cookies
4) Which of the following describes a chemical reaction?
A
tearing, baking, adding ingredients
B
melting, freezing, evaporating
C
burning, rusting, dying
D
cutting, condensing, boiling
5) A solute is different than a solvent because a SOLUTE...
A
is always a liquid. ex: coffee
B
is the thing that is getting dissolved. ex: sugar
C
is the thing that dissolves another substance. ex: water
D
is the thing that creates a chemical reaction. ex: heat
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
simmering
B
steaming
C
boiling
D
blanching
7) An example of a BASE is
A
Laundry Detergent
B
Soda
C
Coffee
D
Orange Juice
8) What of the following describes an ACID?
A
Acids are bitter tasting
B
Acids donate hydrogen (H+) ions in solution
C
Acids are slippery
D
Acids donate hydroxide (OH-) ions in solution
9) Which of the following is NOT a job of water?
A
A medium for heat transfer
B
A temperature control unit
C
An acid/base indicator
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
synthetic
B
liquid
C
gas
D
solid
*select an answer for all questions
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