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Duplicate of Honors Chemistry Review Flashcards | StudBud
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Duplicate of Honors Chemistry Review
Duplicate of Honors Chemistry Review
35 terms
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Final Exam
Flashcards
35 cards
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Questions
35
Answers
1
What is the molecular formula of the compound - empirical formula CH
2
O, molar mass 150 g/mol?
C6H12O6
C4H8O4
C3H6O3
C5H10O5
2
Which is inversely proportional to the pressure of a gas?
velocity
volume
temperature
moles
3
What is the frequency of electromagnetic radiation with a wavelength of 452 nm?
1.50 x 10-15 Hz
6.64 x 1014 Hz
6.64 x 105 Hz
1.36 x 1014 Hz
4
The scuba diver in the image has a mass of 14.5 g. What is its density?
3.625 g/cm3
1.16 g/cm3
1.81 g/cm3
0.552 g/cm3
5
Give the correct molecular geometry for the SF
4
molecule.
square planar
tetrahedral
trigonal by-pyramidal
see-saw
6
Which of the following molecules has trigonal planar geometry?
CH2O
XeF3+
IF3
NH3
7
What is the oxidation number of fluorine in 0F
2
?
+1
-2
-1
+2
8
How many protons, neutrons and electrons are in the ion
238
U
+2
?
92 protons, 146 neutrons, 90 electrons
92 protons, 146 neutrons, 94 electrons
92 protons, 238 neutrons, 90 electrons
92 protons, 238 neutrons, 90 electrons
9
100.0 g of which of the following elements would contain the most atoms?
carbon
nitrogen
lithium
oxygen
10
What is the oxidizing agent in the reaction: Na + H
2
O --> NaOH + H
2
Na
H2
NaOH
H2O
11
Which sequence is in the order: noble gas, alkaline earth metal, chalcogen, alkali metal
He, Sr, O, K
Ne, Ca, Cl, Na
Rn, Sr, S, Al
Ar, Li, F, Ba
12
Whose atomic model is shown in the image?
Thomson
Bohr
Quantum Mechanical
Rutherford
13
Which of the following is NOT an electrolyte?
Ca(C2H3O2)2
C6H12O6
HNO3
NaCl
14
Which set of data is precise but not accurate, given that the true value is 2.70 g/cm
3
?
2.7 g/cm3, 3.7 g/cm3, 1.7 g/cm3
2.71 g/cm3, 2.68 g/cm3, 2.69 g/cm3
1.68 g/cm3, 2.70 g/cm3, 2.45 g/cm3
3.4 g/cm3, 3.3 g/cm3, 3.5 g/cm3
15
Which of the following is a weak acid?
HF
HI
HBr
HCl
16
What rule is being illustrated in the image?
Hund's Rule
Aufbau Principle
Pauli Exclusion Principle
Orbital Principle
17
How many significant figures are in the measurement 0.0045060 g?
8
5
7
4
18
A chemical substance that can not be broken down further by chemical means is a(n)
element
mixture
compound
solution
19
Air is classified as a(n)
element
compound
solution
heterogeneous mixture
20
What type of reaction is pictured in this image?
Decomposition
Double replacement
Single replacement
Synthesis
21
Which is an example of an endothermic process?
clouds forming from water vapor
water boiling
combustion of methane
alcohol freezing
22
What law is represented in the image?
Avogadro's Law
Boyle's Law
Charles' Law
Ideal Gas Law
23
What type of IMFs are present in the molecule shown?
H-bonding
Dipole-dipole
ionic bonds
LDFs
24
Which of the following statements is FALSE?
N-13 and N-14 are isotopes.
Isotopes have different mass numbers.
N-14 and C-14 are isotopes
Isotopes have the same atomic number.
25
What is the pH of a 0.30M NaOH solution?
0.501
12.6
13.5
0.523
26
How many grams of aluminum fluoride are in 2.34 x 10
23
formula units?
22.7 g
50.3 g
36.5 g
333 g
27
Which metal will undergo the greatest ΔT if equal masses are heated with 50.0 J?
Silver - 0.233 J/goC
Aluminum - 0.900 J/goC
Zinc - 0.387 J/goC
Lead - 0.128 J/goC
28
Whose model of the atom is shown in the image?
Dalton
Thomson
Rutherford
Bohr
29
What is the strongest type of IMF that exists between molecules of the substance below?
ionic bonds
dipole-dipole
hydrogen bonding
London dispersion forces
30
What is the limiting reactant when 4.5 moles of sulfur react with 6.5 moles of silver?
silver sulfide
sulfur
water
silver
31
Which of the following gives the correct answer to the correct sig figs? 20.10 g / 4.30 mL =
4.7 mL
4.67 g/mL
4.6744 g/mL
4.674 g/mL
32
What is the molar mass of a gas if 2.50 g occupies a volume of 2.78 L at STP?
31.0 g/mol
20.2 g/mol
24.9 g/mol
24.8 g/mol
33
When this equation is balanced, what is the sum of the coefficients? C
6
H
14
+ O
2
--> CO
2
+ H
2
O
23
47
24
46
34
Which of the formulas is INCORRECT?
CaSO4
Na2S
AlSO4
CaS
35
Which of the following is a chemical change?
potassium chloride melting
potassium chloride decomposing
potassium chloride evaporating
potassium chloride dissolving in water
