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Chapter 2: Q4.68P (page 40)
Give the oxidation number of arsenic in the following:
You need to provide the oxidation number of arsenic for the given compounds.
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Thomson was able to determine the mass/charge ratio of the electron but not it's mass. How did Millikan’s experiment allow the determination of the electron’s mass?
What are some characteristic properties of elements to the left of the elements along the “staircase”? To the right?
State the mass law(s) demonstrated by the following experimental results, and explain your reasoning:
Experiment 1: A student heats 1.00 g of a blue compound and obtains 0.64 g of a white compound and 0.36 g of a colourless gas.
Experiment 2: A second student heats 3.25 g of the same blue compound and obtains 2.08 g of a white compound and 1.17 g of a colourless gas.
What class of elements lies along the “staircase” line in the periodic table? How do their properties compare with those of metals and nonmetals?
The elements inGroupsandare all quite reactive. What is the major difference between them?
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