Question

Inorganic please help! Only answer if you understand and can answer it fully

Answer the following multiple choice questions. Circle the correct answer. Each is 1. When indium is added as an impurity to a pure semiconductor, it becomes a. an insulator b, an intrinsic semiconductor c. a p- type semiconductor d. an n-type semiconductor 2. If an equal molar mixture of oxygen, nitrogen, krypton, and carbon dioxide are placed in a 10 L container with a 1 um hole in the side so that the gas is slowly leak out which gas will predominant after 20% of the original gases have leaked out? a. oxygen b. nitrogen c. krypton d. carbon dioxide 3. The average molecular kinetic energy of a sample of carbon dioxide is found to be the same as that of a sample of neon. how do the temperatures of the samples compare? a. the carbon dioxide is it roughly 4 times the temperature of the neon b. the neon is roughly 4 times the temperature of the carbon dioxide c. the neon is roughly 2 times the temperature of the carbon dioxide d. the temperatures of the two gases are the same e. temperatures cannot be determined from the information given 4. Colligative properties depend upon a. quality not quantity b. size not charge c. number not kind d. mass not size 5. Which of the following aqueous solutions will have the lowest freezing point. a. 0.10 molal calcium chloride (CaCl2) b. 0.90 molal NH3 c. 0.45 molal sodium nitrate (NaNO3) d. 0.65 molal HCl

Answer 1

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