1.4 C. difference in electronegativity
1.5 B. 5 moles
1.6 B. The pressure of a given mass of gas decreases as the volume is increased at constant temperature.
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Question 1.4 (2 marks]
The polarity of bonds is determined by the
A. distribution of core electrons
B. distribution of the lone pair electrons
C. difference in electronegativity
D. difference in electron affinity
Question 1.5 (2 marks]
Consider the following reaction equation:
2S0, (g) + 0, (g)
2S0, (g)
If6 mol of SO, and 2 mol of O, are allowed to react at STP in a sealed 1 dm
container, what will the total number of moles of gas be in the container once
the reaction is completed?
A, 4 moles
B. 5 moles
C. 6 moles
D. 8 moles
Question 1.6 (2 marks]
Which of the following statements is false?
A. At constant temperature, Charles' law applies.
B. The pressure of a given mass of gas decreases as the volume is increased
at constant temperature.
C. Isobaric changes are those which occur at constant pressure.
D. Boyle's law applies at a constant temperature.
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