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Author Question: Even though the Martian atmosphere is composed almost completely of the greenhouse gas carbon ... (Read 49 times)

nelaaney

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on: Jul 27, 2018
Even though the Martian atmosphere is composed almost completely of the greenhouse gas carbon dioxide, its surface is much colder than the Earth because its
 
  A) atmosphere is much thinner
  B) surface does not radiate any infrared radiation
  C) atmosphere contains equal amounts of gases which neutralize the greenhouse effect
  D) polar caps are much larger than on the Earth

Question 2

Consider an atom of gold in which the nucleus contains 79 protons and 118 neutrons. If it is doubly ionized, what is the charge of the gold ion and how many electrons remain in the ion?
 
  A) The gold ion has a charge of +2 and 77 electrons.
  B) The gold ion has a charge of +2 and 79 electrons.
  C) The gold ion has a charge of -2 and 77 electrons.
  D) The gold ion has a charge of +2 and 2 electrons.
  E) The gold ion has a charge of +79 and no electrons.


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GCabra

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


nelaaney

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Reply 2 on: Jul 27, 2018
Excellent

milbourne11

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Reply 3 on: Yesterday
:D TYSM

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