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Gen. Chem. Final Review #2
Test Description: Ms. Ireley's General Chemistry Final part 2
Instructions: Answer all questions to get your test result.
1) What dissolves fats?
A
oxidizer
B
emulsifying agent
C
reducer
D
water
2) A water molecule has an uneven sharing of electrons between the hydrogen atoms and the oxygen atom, because of this, water is ______
A
soluble
B
insoluble
C
non-polar
D
polar
3) What are the negatively charged particles that orbit the nucleus of an atom called?
A
orbitals
B
protons
C
neutrons
D
electrons
4) 1cm = ____ mm
A
100
B
10
C
1
D
1000
5) The basic unit of length in the metric system is
A
degrees
B
grams
C
liter
D
meter
6) For an element, the number of electrons equals the number of ________ and the _________ number
A
atoms, mass
B
protons, mass
C
protons, atomic
D
atoms, atomic
7) Boron has an atomic number of 5 and an atomic mass of 11, how many electrons does it have?
A
6
B
11
C
16
D
5
8) Bromine has an atomic number of 35 and an atomic mass of 80, how many neutrons does it have?
A
115
B
80
C
35
D
45
9) Detergents enable water to mix with
A
oil
B
detergent
C
itself
D
dirt
10) sugar crystals added to a super saturated solution results in
A
formation of a mineral
B
formation of a syrup
C
formation of a gas
D
crystallization
*select an answer for all questions
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