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WorksheetsRockhurst Chemistry Review Second Semester
Total questions: 47
Worksheet time: 25mins
CH4 + O2 → CO2 + H2O
What kind of chemical reaction is shown?
Combustion
Single Replacement
Double Replacement
Synthesis
Decomp
This piece of laboratory glassware is used to perform a titration. It is very precise. What is it called?
A pipette
a graduated cylinder
a capillary tube
a burette
What is the equation for Molarity (M)?
g/mol
mol/g
mol/L
L/mol
NaNO3 + Pb(NO3)2 →
What kind of reaction is this?
Single replacement
Double replacement
Synthesis
Decomposition
Combustion
What kind of measurement is something in kPa?
It is a temperature
it is a volume
it is a molarity
it is a pressure
What kind of relationship is shown?
direct proportion
indirect proportion
inverse proportion
quadratic proportion
What does the (aq) after NaCl(aq) mean?
This will form a precipitate
This will make a gas
This is highly reactive with water
This is in solution
Two aqueous solutions are mixed, and a solid results. What is the name for this class of solid?
isotope
alletrope
precipite
sublimate
When you add CuSO4 to H2O, it dissolves. The copper (II) sulfate is said to be:
miscible
immiscible
soluble
insoluble
All combustion reactions containing a hydrocarbon (CxHy) produce what TWO products?
CO2
H2O
C6H12O6
HCl
Co
The loss of electrons is called:
oxidation
reduction
spectation
precipitation
Cu2+ → Cu0
In this reaction, what process is the Cu2+ species undergoing?
Oxidation
Reduction
It is a spectator
It is a catalyst
What is the oxidation state of C in CO2?
+2
+4
-2
-4
What is the oxidation state of N in HNO2?
+1
+2
+3
+4
What does this symbol mean in a chemical reaction?
The reaction needs water to happen
the reaction only happens at high temperature
The reaction is unbalanced
The reaction can proceed both directions
Which of the following is not a property of a base?
it has a pH > 7
it feels slippery on skin
it accepts protons
it tastes sour
Which of the following is an acid?
H+ > OH-
H+ = OH-
H+ < OH-
What do the [ ] around [H+] around the hydrogen ion mean?
the molarity of hydrogen ions
the molar mass of hydrogen ions
the mass of the hydrogen ions
the volume of the hydrogen ions
Al + Fe2O3 → Fe + Al2O3
What kind of reaction is this?
single replacement
double replacement
synthesis
combustion
decomposition
Which variable cannot change in a rigid container?
Pressure
Temperature
Volume
mols
In the ideal gas law equation, what does n stand for?
PV = nRT
mols
molar mass
grams
molarity
Which of the following is not a unit of pressure
mmHg
Torr
PSI
kPA
they all are pressures
What are the units of pH and pOH?
log
ln
pH and pOH are units themselves
M
They are unitless
What is the name of HBr?
Bromic Acid
Hydrobromic acid
Bromous Acid
Hydrobromous acid
What is the name of NH3 - as a base?
ammonium
ammonia
hydroammonia
nitrogen trihydride
Fe + MgCl2 → Mg + FeCl3
Does this reaction happen?
yes
NR
NI3 → N2 + I2
What kind of reaction is shown?
single replacement
double replacement
synthesis
decomposition
combustion
A gas is said to be at STP. Which pressure is it at, in ATM? (don't give a unit, just write the number)
(a)
A gas is at a temperature of 30ºC. What is it in Kelvin?
(a)
You compress a volume of air; in response the temperature will:
fall
stay the same
rise
Atmospheric pressure decreases _____ with height
linearly
exponentially
unpredictably
it doesn't decrease, it increases
How many sets of parenthesis would you need to do this problem?
"How many grams of H2O are needed to make 4.5mol of HNO3?"
(3 NO2 + H2O → 2 HNO3 + NO)
1 set
2 sets
3 sets
4 sets
When solving this stoichiometry question, where would the numbers in the boxes come from?
The periodic table
from the number of parenthesis
from the balanced equation
from the state of matter of the substance
Which of the following species is a spectator ion?
Fe0
Cu2+
Cl-
none of these are spectators
It is possible to have a temperature significantly below 0K.
true
false
pH + pOH is always equal to which number?
0
1
14
6.02*1022
In acid base reactions, we often talk about the H+ ion; this ion is effectively which subatomic particle?
p+ (proton)
e- (electron)
n0 (neutron)
none of these
Which cannot be directly used in the ideal gas law when R = 0.0821?
Liters
atmospheres
Kelvin
mols
molar mass, 𝓜
A graph of Charles's Law is presented. Which kind of relationship does it represent?
Direct Proportion
Indirect Proportion
Inverse Proportion
Quadratic Proportion
Which of the following is the ion present in nitrous acid?
NO3- (the nitrate ion)
NO2- (the nitrite ion)
N3- (the nitride ion)
Gases with the same number of moles occupy the same volume at a given pressure and temperature
true
false
In the ideal gas law, PV=nRT, R will always be equal to which value?
1
821
273
0.0821
A pH of 3 is twice as strong an acid as a pH of 6
true
false
Only one kind of reaction can have a single product. Which is it?
Single Replacement
Double Replacement
Synthesis
Decomposition
How do you know a double replacement reaction does not react (NR)
it is endothermic
it is exothermic
all products are soluble
all products are insoluble
Fats are converted to soap by:
strong acids
strong bases
Which species in undergoing reduction?
Fe0
Cu2+
Cl-
