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Unit One - Atomic Structure / Metrics
Test Description: This is a review of Unit 1 for both ICP and Chemistry classes
Instructions: Answer all questions to get your test result.
1) Which of the following best explains the molecular structure of solids.
A
Molecules are compacted and moving very fast
B
Molecules are spread out and moving very fast
C
Molecules are compacted and moving very slow
D
Molecules are spreat out and moving very slow
2) Which of the following numbers have six significant figures (sigfigs)
A
234000
B
2340.000
C
2340.00
D
20034.00
3) How many protons does the element Sulfur (S) have?
A
48
B
16
C
8
D
32
4) How many neutrons does the element Iron (Fe) have?
A
30
B
56
C
86
D
26
5) Convert 1320 mm to m.
A
.1320 m
B
132.0 m
C
13.20 m
D
1.320 m
6) Which of the following represents when gases turn into liquids
A
sublimation
B
evaporation
C
condensation
D
deposition
7) If a state of matter with very close molecules and move slowly is heated and changes into a state where the molecules are less compact and move just a little faster is called
A
Freezing
B
Condensing
C
Evaporating
D
Melting
8) Which of the following is the most precise measurement.
A
231 ml
B
231.0 ml
C
230 ml
D
231.03 ml
9) Which of the following correctly states which subatomic particles are in the nucleus.
A
Only Electrons
B
Protons and Neutrons
C
Protons and Electrons
D
Neutrons and Electrons
10) Which of the following best describes a physical change.
A
The change cannot be reversed
B
The molecules have changed
C
The substance molecules stay the same
D
Something new is created
11) Which of the following is an example of a Chemical property
A
Ductility
B
Density
C
Flammabilty
D
Color
12) Which of the following best represents a physical change taking place
A
An ice cube melting in the sun
B
Wood burning at a campfire
C
Baking a cake in the oven
D
Popping popcorn in the microwave
13) Which of the following would you use to measure the volume of an object?
A
Ruler
B
Graduated Cylinder
C
Dropper
D
Balance
14) Which of the following is the smallest subatomic particle
A
Electron
B
Proton
C
They are all equal size
D
Neutron
15) Which of the following are ordered from lowest to highest kinetic energy.
A
Solids, Liquids, Gases
B
Liquids, Solids, Gases
C
Gases, Solids, Liquids
D
Gases, Liquids, Solids.
16) If a substance is cooled, what effect would that have on the molecules?
A
The kinetic energy will stop all together
B
The kinetic energy will remain the same
C
The kinetic energy will speed up
D
The kinetic energy will slow down
17) Which of the following correctly describes an electron
A
Negative charge that is smaller than protons and neutrons
B
Negative charge that is larger than protons and neutrons
C
Positive charge that is larger than protons and neutrons
D
Positive charge that is smaller than protons and neutrons.
18) If George needs to drink 2.2 liters of water a day, how many mL must he drink?
A
22,000 mL
B
22 mL
C
220 mL
D
2,200 mL
19) Which of the following would be the most common isotope of Uranium (U)?
A
U 233
B
U 238
C
U 239
D
U 236
20) In which of the following do the zeros count as a significant figure (sigfig)?
A
230.0
B
230
C
0.0023
D
2300
*select an answer for all questions
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