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Unit 4 - VSEPR, Polarity, Forces, And Enthalpy Review
Test Description: This game reviews the concept of VSEPR, Polarity, Forces, and Enthalpy Review.
Instructions: Answer all questions to get your test result.
1) What shape and polarity is Silicon tetrachloride?
A
Trigonal pyramidal/Polar
B
Tetrahedral/Non Polar
C
Tetrahedral/Polar
D
Trigonal pyramidal/Non Polar
2) What shape is Calcium chloride?
A
Covalent - Linear
B
Ionic - No Shape
C
Ionic - Linear
D
Covalent - Bent
3) What is the shape and polarity of phosphorus trifluoride?
A
Trigonal Planar/Polar
B
Trigonal Pyramidal/Polar
C
Trigonal Planar/Non polar
D
Trigonal Pyramidal/Non Polar
4) What is the shape and polarity of HOF
A
Bent/Non polar
B
Bent/Polar
C
Linear/Non polar
D
Linear/Polar
5) Which structure below has the strongest molecular force?
A
H2O
B
KCl
C
HF
D
NH3
6) Select the true statement regarding an endothermic chemical reaction.
A
Energy is neither being absorbed nor being released.
B
Energy is released into the surroundings.
C
Energy is absorbed from the surroundings.
D
Energy of the reactants is greater than the energy of the products.
7) Which of the following is an exothermic process?
A
Water vapor condensing to liquid water
B
Ice cube melting
C
Liquid water evaporating to water vapor
D
Baking bread
8) Mercury oxide needs 180kJ to decompose into Mercury and Oxygen gas is an example of what type of reaction?
A
The reaction is endothermic.
B
The reaction is exothermic.
C
The potential energy of the products is greater than that of the reactants.
D
The products have less potential energy than the reactants.
9) Choose the TRUE statement regarding enthalpy.
A
Enthalpy is heat absorbed or released in a chemical reaction.
B
Bond lengths can be used to calculate enthalpy.
C
Enthalpy is measured in grams/mole.
D
A single bonded carbon has the same enthalpy as a double bonded carbon.
10) Pick the compound that would be soluble (dissolve) in CCl2H2.
A
HCN
B
N2
C
CO2
D
CCl4
*select an answer for all questions
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