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Chemistry Year Review Flashcards | StudBud
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Chemistry Year Review
Chemistry Year Review
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Questions
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Answers
1
T or F: the full name of the acid HNO
2
is Nitrous Acid
False
True
2
How many digits can be estimated in a measurement?
1
it depends on the size of the measurement
all of them
0
3
Alkaline earth metals
in group 18
in group 1
in group 2
in group 17
4
Name Mg(NO
3
)
2
Magnesium Nitrate
Magesium Nitrogenide
Magnesium Nitrite
Magnesium Nitride
5
How many electrons does the following ion have?
12
22
10
14
6
Molarity is the measure of what?
Bitterness
Flammability
Mass
Concentration
7
What sublevel fills after the 4s sublevel fills?
5d
3d
4p
4d
8
Homogeneous Mixture or Heterogeneous Mixture: Salad
Heterogeneous
Green Stuff
Homogeneous
Needs more dressing
9
What is the half-life of this radioisotope?
10-15 years
45 years
30-35 years
60 years
10
What are the states of matter?
solid and liquid
solid, liquid, and gas
solid, liquid, and juice
solid and gas
11
When calculating Gas Laws, Temperature is reported in
Celsius
Kelvin
Farenheit
Calvin
12
What happens during single replacement?
Occurs when one element replaces another one in a compound
When a substance change
Two or more elements or compounds combine.
compounds break down
13
Which of the following is a safety hazard in the lab?
Long hair pulled back
Long hair
Lab apron
14
P
Potassium
Posphorus
Phosphorus
Phosforus
15
Name the Covalent Compound
Potassium Pentasulfide
Tetraphosphorus Pentasulfide
Quatraphosphorus Sulfide
Potassium Sulfide
16
Oxidation and reduction
always occur with oxidation first, then reduction.
always occur at different times.
always occur simultaneously.
do not occur in the same reaction.
17
Describe the location and charge of a proton.
Outside nucleus and positive charge.
Inside nucleus and neutral charge.
Inside nucleus and negative charge.
Inside nucleus and positive charge
18
Which of the following is Avogadro's Number?
6.92 X 1024
6.022 X 1023
6.02
6.022 X 10
19
What is the first step in all stoichometry calculations?
Balance the equation if not already balanced
Put random numbers in your calculator
Cry
Do Mole-to-Mass relationship calculation
20
How many total electrons can a d sublevel accommodate?
10
14
5
6
21
Why do scientist use the Scientific Method?
To prove an answer to a question as a way to understand the world
To do a fun experiment.
To compare.
Fun!
22
What is the electron configuration of Sodium?
1s22s22p63s1
1s22s22p53s2
1s22s22p63s2
1s22p63s1
23
Strong acids and bases
completely dissociate
never dissociate
only dissociate a little bit
are used to make buffer solutions
24
You are heating a piece of glass and now want to pick it up. You should...
use tongs
use a rag or paper towels
pour cold water on it
pick up the end that looks cooler
25
What is Nuclear Fission?
Radioactive decay process in which isotopes split apart
The mixing of nuclear with fuel
Fossil Fuels
26
What types of elements make up covalent bonds?
Clear
Nonmetal
Metal
Between metal and nonmetal
27
The correct measurement on this graduated cylinder is:
35.000
35.0
35.00
35
28
What is percent yield?
ratio between moles used and moles produced
ratio between actual moles obtained and theoretical moles
ratio between grams of reactant used and grams produced
ratio between actual yield and theoretical yeild
29
What are the 5 branches of Chemistry?
Atoms, Moles, Particles, Electrons, and Ions
Organic, Inorganic, Biochemistry, Analytical, and Physical
Inorganic, Real, Fake, Mental, and Physical
Biochemistry, Physical, DNA, RNA, and Organic
30
Which of the following led to the discovery of the nucleus?
Gold foil experiment
Particle accelerators
Cathode ray tube
Creation of the television
