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WorksheetsAP Chemistry Review Questions (part 1)
Total questions: 25
Worksheet time: 38mins
What does the magnitude of Ksp tell us about a salt?
How much it can dissociate
The pH at equilibrium
How much solid is present
The molar mass of the ions
When reading a PES graph, what quantity is proportional to peak height?
The number of protons
The molar mass of the isotope
The number of electrons
The binding energy of the electrons
What two characteristics must an effective collision have?
Sufficient kinetic energy
High enough pressure
Correct orientation
Sufficient potential energy
Which of these is NOT a strong acid?
HF
HCl
HBr
HI
What is the hybrid orbital for BF3 ?
sp2
sp3
sp
s2p
Generally speaking, which of these IMFs is the weakest?
Hydrogen Bonding
dipole-dipole
London dispersion
ion-dipole
What type of alloy is made when the radii of the atoms are similar in size?
ionic
substiutional
interstitial
covalent network
How will the percent ionization of a weak acid change if water is added to it?
It will increase
It will decrease
It will stay the same
Not enough information
Filtering separates mixtures based on...
boiling point
particle size
polarity
molarmass
What is the hybrid orbital for H2O ?
sp2
sp3
sp
s2p2
In this PES graph, which electrons are closest to the nucleus?
A
B
C
They are all at an equal distance
According to Coulomb's Law, which TWO properties of an electron determine the strength of attraction to the nucleus?
Distance between e- and nucleus
Number of neutrons
Atomic Mass
Effective Nuclear Charge
If Q increases, the voltage ( Ecell ) of the battery ______ relative to Eo .
decreases
increases
stays the same
not enough info
Distillation separates mixtures based on...
Particle size
Polarity
Boiling Points
Molar Mass
If a reaction increases the number of moles of gas, the sign for ΔS will be
negative
positive
Which of the electrons in the PES graph have the highest binding energy?
A
B
C
They all have the same binding energy
Elements in the same _____ on the periodic table have similar chemical and physical properties.
group
period
Which of the following does NOT speed up a chemical reaction?
increase the concentration of a reactant
increase the surface area
increase the temperature
increase the concentration of a product
The simplest whole-number ratio of the atoms in a compound is called the _______ formula.
molecular
empirical
net ionic
redox
What is the bond angle in CO2 ?
120
180
109.5
90
Why do atoms get smaller when moving from left to right in a period?
The number of energy levels increase
There is a higher molar mass
The effective nuclear charge increases
Not true: they get larger from L --> R
Temperature is the ________ of particles.
Total heat energy
Maximum kinetic energy
Average kinetic Energy
Average mass energy
Adding the conjugate base to a weak acid solution _____ the percent ionization of the acid
increases
decreases
does not affect
not enough info
Electrons flow from the anode to the cathode.
True
False
The TWO products of a hydrocarbon combustion reaction are...
water
oxygen
hydrocarbons
carbon dioxide
