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Pre-AP Final Quiz 2 Flashcards | StudBud
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Pre-AP Final Quiz 2
Pre-AP Final Quiz 2
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Answers
1
What molecular geometry does NH
3
have?
Trigonal Pyramidal
Bent
Tetrahedral
Linear
2
Who arranged the periodic table according to their properties?
Mosely
Ramsay
Bohr
Mendeleev
3
A theory differs from a hypothesis in that
a hypothesis has been tested many times where a theory has not been tested
a theory is fake
a theory is widely accepted and brings together a series of phenomena
a hypothesis is just better
4
Who had the gold foil experiment?
Dalton
Mendeleev
Bombastus
Rutherford
5
Measurements that agree closely with one another are
accurate
precise
6
What is the hybridization of Carbon in methane?
sp
sp2
sp3
sp4
7
What molecular geomtry does HCl have?
Linear
Bent
Trigonal Pyramidal
Tetrahedral
8
Which element has the electron configuration 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
1
K
Y
Sc
Ca
9
What is the percent composition of KI?
20%K, 80%I
50% K, 50% I
24% K, 76% I
2% K, 98% I
10
In the cathode ray tube experiment, which subatomic particle was discovered?
protons
nucleus
electrons
neutrons
11
What molecular geomtry does water have?
Trigonal Planar
Linear
Trigonal pyramidal
Bent
12
What molecular geomtry does BF
3
have? (Boron is an exception!)
Trigonal Planar
Trigonal Pyramidal
Tetrahedral
Linear
13
What molecular geometry does methane have?
Linear
bent
trigonal planar
tetrahedral
14
Is an H-O bond polar, nonpolar, or ionic?
none of the above
ionic
polar
nonpolar
15
If magnesium has a charge of +2, how many total electrons does it have?
14
24
12
10
16
What device do we use to measure heat lost or gained?
balance
calorimeter
centrifuge
thermometer
17
How many protons, neutrons, and electrons does Argon have?
22p, 18n, 18e
18p, 18n, 18e
18p, 22n, 18e
18p, 18n, 22e
18
Atoms of the same element that differ in the number of neutrons.
Iodides
Isotopes
Isoelectronics
Nuclides
19
Accuracy refers to how closely measurements
agree with the accepted value
agree with eachother
20
Who is famous for the atomic theory?
Dalton
Mosely
Rutherford
Mendeleev
