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Chemistry Exam Review
Which state of matter is the most organized?
What is chemistry?
Chemistry Exam Review
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Chemistry Semester One Exam Review
Flashcards
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Questions
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Answers
1
What is chemistry?
The study of matter and how it changes
The study of living things
The study of numbers
The study of plants and animals
2
Which state of matter is the most organized?
Liquid
Solid
Gas
3
On the periodic table a group or family is
Diagonal Rows
Horizontal Rows
Vertical Rows
None of the above
4
Give the name of the following compound, Ca
3
N
Calcium Nitride
Tricalcium mononitride
Calcium mononitride
Calcium (III)
5
True or false. 6.02 x 10
23
isAntonio’s number.
True
False
6
The random molecular motion of a substance isgreatest when the substance is
A gas
Condensed
Frozen
A liquid
7
Define Matter
The smallest particle of an element
positively charged particles
Anything that has mass and occupies space
The smallest particle on Earth
8
The element symbol for Sodium is
Sm
So
Na
S
9
Column 5A containing elements like Nitrogen havea charge of:
-1
+3
-3
-2
10
Which of the following subatomic particles can befound inside the nucleus of an atom?
Protons and Neutrons
Neutrons only
Electrons only
Protons, Neutrons, and Electrons
11
Which of the following is NOT a diatomicmolecule?
Neon
Chlorine
Bromine
Oxygen
12
What SI unit is used to measure volume?
Liters
Kilometers
Meters
Grams
13
Dissolving salt in water is classified as
Physical Change
Chemical Change
14
The closeness of two measurements to each otheris called?
Accuracy
Precision
Perfection
Results
15
Which of the following would always form a cationwith a +1 charge?
Fe
Cr
K
Mg
16
Which of the following is paired incorrectly?
H >> Hydrogen
O >> Oxygen
N >> Nickel
K >> Potassium
17
When nonmetals form ions, their tendency is to_________ to look like the nearest noble gas.
Lose electrons to form cations
Gain electrons to form cations
Lose electrons to form anions
Gain electrons to form anions
18
The correct name for N
2
O
6
is:
Dinitrogen hexoxide
Mononitrogen hexoxide
Nitrogen (II) Hexaoxide
Nitrogen Pentoxide
19
A mixture that seperates into two visible phasesis known as
Solution
Homogeneous Mixture
Heterogeneous Mixture
Compound
20
The element symbol for Nitrogen is
Ng
N
Ni
No
21
Atoms consist principally of what threefundamental particles?
Elements, protons, and neutrons
Electrons, protons, and neutrons
Electrons, positrons, and neutrons
Elements, positrons, and neutrons
22
Which equation represents a decompositionreaction:
AB + XY >> AY + XB
XY >> X + Y
A + XY >> AY + X
X + Y >> XY
