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WorksheetsCHM112 Term 3 Quiz 2
Total questions: 15
Worksheet time: 45mins
Identify which of the following is NOT soluble in water:
NaNO3
KCl
BaSO4
NaCl
Analyse the graph to determine the solubility of NH4Cl at 70°C.
52 g NH4Cl/100 g water
96 g NH4Cl/100 g water
43 g NH4Cl/100 g water
62 g NH4Cl/100 g water
The shape of the carbonate ion below is described as:
linear
trigonal planar
tetrahedral
pyramidal
Which of the following is an intermolecular force?
Ionic bonding
Covalent bonding
Electrostatic bonding
Hydrogen bonding
A forensic scientist tested the contents of a pill found at a crime scene. The diagram below shows the results of the chromatography test. The Rf of compound A was found to be:
0.43
0.57
0.75
0.92.
Which of the following statements is correct?
A strong acid cannot be concentrated.
A weak acid cannot be concentrated.
A strong acid can be dilute.
A strong acid cannot be dilute.
An Arrhenius acid:
increases the concentration of hydroxide ions in water
increases the concentration of hydronium ions in water
is a measure of how easily a solution is able to produce hydroxide ions
easily disassociates to form hydroxide ions
Collision theory states that the rate of a reaction can be increased
by:
increasing the pressure of the solid reactants
increasing the temperature of the reactants
decreasing the concentration of the reactants
decreasing the temperature of the reactants
Which of the graphs shows the reaction that has the most concentrated reactant?
A
B
C
D
15.9 g of potassium dichromate (K2Cr2O7) is dissolved in enough water to produce 250 mL of solution. Determine what the molarity of the solution is.
1.2M
5M
0.2M
0.02M
At 17°C, 26.5 mL of nitrogen gas at 1 Pa was collected in a flask. The next day the volume of the nitrogen was 27.1 mL with the pressure of 1 Pa. Determine the temperature on the second day.
10 Degrees Celsius
24 Degrees Celsius
78 Degrees Celsius
32 Degrees Celsius
Identify which arrow (A, B or C) represents the amount of activation energy in the reaction.
Line A
Line B
Line C
Identify which arrow represents the change in energy between the reactants and products.
Line A
Line B
Line C
Determine whether this reaction an exothermic reaction or an endothermic reaction.
Exothermic
Endothermic
Aqueous solutions of HCl and NaOH are mixed together. What is the name of this type of reaction?
Neutralisation
Dissociation
Acid and metal
Acid and carbonate
