Chem 102 practice problems for test 2 1. Which formula is correct for an alkane? A. C3H7 B. C3H8 2. C. CH3 D. C2H6Cl
The hybridization of the carbon atoms in all cycloalkanes is: A. sp4 B. sp3 C. sp2 D. sp
3.
What is the IUPAC name for this compound?
A.
c
1 hour
IB DIPLOMA PROGRAMME PROGRAMME DU DIPLME DU BI PROGRAMA DEL DIPLOMA DEL BI
M04/420/S(3)
CHEMISTRY STANDARD LEVEL PAPER 3 Wednesday 19 May 2004 (morning)
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INTERNATIONAL
BACCALAURAT
BACHILLERATO
c
BACCALAUREATE
INTERNATIONAL
INTERNACIONAL
MARKSCHEME
May 2004
CHEMISTRY
Standard Level
Paper 3
11 pages
M04/420/S(3)M+
2
M04/420/S(3)M
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examiners in this
II. Goal: To evaluate and simplify expressions with rational exponents (A.4) A. Notation
B. Rewrite using exponents in the form kx p 2 x 9 x 1
4
5
5
7
x
2 x8
3
C. Evaluate 16
3
27x 6
4
16
4
81a 4 b12
4
81 16
25m10 16n16
D. Rewrite using radicals and evalu
exam1 chem102 fall09
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
_
1.
Which of the following would be representative of an atom containing 25 protons 26 neutrons and
23 electrons?
I. Cation
exam3 fall08
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
_
1. Name the following compound?
H3C
O
H3C
a. isopropylpentoanoic acid
b. propylpentanoic anhydride
O
CH3
d. propoxypentanoate
e. no
Chapter 1 - Atomic and Molecular Properties
Atoms are made up of what subatomic particles?
-Electrons
-Protons
-Neutrons
What are the relative charges and relative masses of the subatomic particles of an atom?
Particle Relative Charge Relative Mass
Electr
Chapter 2 - Chemical Interactions
Define reactants, products, and coefficients.
Reactant: the substances consumed (magnesium and oxygen)
Product: the substances formed (magnesium oxide)
Coefficient: numbers before the formula of a substance in the equatio
Chapter 3 - Saturated Hydrocarbons
Define Organic Chemistry
The study of carbon containing compounds.
(Over 85% of the millions of know compounds are carbon compounds)
Define Hydrocarbons and name the different classes
Hydrocarbon: a class of compounds co
II. Goal: To use properties of logarithms to rewrite expression (4.2) A. Properties of logs 1. log a ( xy ) = log( 5 x ) = log 2 + log 5 = ln 3 + ln 5 + ln 2 = x 2. log a = y 10 log 3 = x 7 ln = e
ln 30 - ln 2 =
and
ln( xy ) =
and
x ln = y
log12 = log 2
IV. Goal: To find the average rate of change (2.1) A. The population of the U.S. is a function of time. Year 1800 1820 1840 1860 1880 Population in millions 5.3 9.6 17.1 31.4 50.2 Year 1900 1920 1940 1960 1980 Population in millions 76.2 106.0 132.2 179.3
IV. Goal: To use logs to solve application problems (4.5) A. The population of Mathville is growing by 8% each year. If there were 12,000 people in 1990. a. Write an equation for the population as a function of years since 1990. b. How long until the popu
1.Which of the following has the highest lattice energy? NaCl KI MgO BaO CaO 2. Which of the following metal ions has the ground-state electron configuration [Ar]3d6? Ni3+ Fe2+ Mn2+ Cu+ Ca2+
3. How many lone pairs of electrons are found in the Lewis struc
Calculate the work done by decreasing the pressure of a 7.3 mol He at 77C reversibly from 2.0 atm to 1.0 atm. Assume that Helium behaves as an ideal gas. Give your answer (including sign) in kJ to 3 significant figures. Answer 2. Calculate the heat that m
Chapter 7: The Second and Third
Law of Thermodynamics
Spontaneous change
Spontaneous changes (natural processes)
Heat flows from hot to cold
Gas expands in a vacuum
A ball will stop bouncing
Non-spontaneous changes (unnatural)
The reverse of above
Carn
Chapter 6,7 equations
U = q + w
w = -p V
S = nC v ,m ln(
T2
)
T1
H = U + nRT
S = qrev/T
V
S = nR ln 2
V
1
T
S = nC p ,m ln 2
T
1
o
H x
S =
where x = fus, or vap
T
o
x
H = Cp T q = mC s T
U = Cv T
H = U + PV
V
wrev , const ,T = nrt ln 2
V
1
wad = nC
I. Goal: To simplify expressions with exponents and use exponents to represent numbers (A.3) A. Exponents 1. Exponents are a shorter way to write repeated multiplication 22222222 = x 3 means _ 2. x a x b = _ m m3 = 33 34 =
3
x6 y3 x2 y =
( )
4
( 2 x y )(5
I. Goal: To read and describe data (1.2, 1.3) A. Ways to represent data
B. A relation is 1. The table below gives values of a relation between the number of hours worked and the workers wage. Hours 4 6 8 10 Wages (in dollars) 36 54 72 90
a. Express the da
exam1_102sp2011
Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which subatomic particle is found outside the nucleus? a. proton b. neutron c. electron d. nucleon e. more than one of these 2.
V. Goal: To distinguish between linear and exponential functions (3.3, 3.5) A. Linear verses exponential functions 1. In 2006, the number of math majors at USC was 250. a. If the number of math majors is growing by 4% per year, write an equation M, for th
Chapter 5 - Alcohols, Phenols and Ethers
What are the physical properties of alcohols?
Much higher boiling and melting points
Soluble in water
Both attributed to hydrogen bonding
Describe the acidity and basicity of alcohols.
Most alcohols have a pH very
chapter 10-carbs
saccharides
single most abundant family of organic compounds in nature with a variety of functions
*(breakdown) of glucose generates energy for life processes
-storage of glucose: starch of plants, glycogen in animals
*structural and
Chapter 11
Lipids
most predominant and most efficient form of stored energy in animals
non-polar compounds or compounds of low polarity
most are "amphipathic"
hydrolyzable or nonhydrolyzable
water and oil dissolving ability
Amphipathic
one part of m
1
EnvironmentalFactorsThatLeadtoPsychopathicBehavior
Environmental Factors that Lead to
Psychopathic Behavior in Serial Killers
Andrew Wills
PSYC410 section 003
University of South Carolina
2
[Typetext]
What causes a person to develop into a psychopathic
CREDITS: returnofthestudysheet
CHEMICAL AND PHISICAL
Identify the following as either a Physical or a chemical change
1. Zinc+ hydrochloric acid Zinc chloride + hydrogen
Chemical
2. Sodium chloride in H20.
NOTE: sodium chloride is Salt; physical
3. Tearin