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Crank
3 years ago
8

Which other element is most likely to be a nonreactive gas?

Chemistry
2 answers:
iragen [17]3 years ago
8 0

Option [D] Krypton, Kr number 36

icang [17]3 years ago
4 0

Answer:

Choice D. Among the choices, \rm Kr (krypton) is likely to be the most similar to neon and behave as a non-reactive gas.

Explanation:

Columns in the periodic table are called "groups." Elements in the same group (i.e., same column of the periodic table) tend to have similar chemical properties.

In this example, neon is in the same right-most column of the periodic table. Since neon is a non-reactive gas, it is reasonable to infer that other elements in the same column would behave similarly.

Among the choices, krypton ({\rm Kr}) is the only element in the same column. Thus, krypton would be the most likely element to be a nonreactive gas.

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Question: The question is incomplete. Below is the complete question and the answer;

While ethanol (CH3CH2OH is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting ethylene CH2CH2) with water vapor at elevated temperatures. A chemical engineer studying this reaction fills a 50.0 L tank at 22. °C with 24. mol of ethylene gas and 24. mol of water vapor. He then raises the temperature considerably, and when the mixture has come to equilibrium determines that it contains 15.4 mol of ethylene gas and 15.4 mol of water vapor The engineer then adds another 12. mol of water, and allows the mixture to come to equilibrium again. Calculate the moles of ethanol after equilibrium is reached the second time. Round your answer to 2 significant digits.

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SEE THE ATTACHED FILE FOR THE CALCULATION

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