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Author Question: Which of the following gases is a trace natural constituent of the air? a. Ar b. SO2 c. CO d. ... (Read 61 times)

Shelles

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on: Jul 28, 2018
Which of the following gases is a trace natural constituent of the air?
 a. Ar
  b. SO2
 c. CO
  d. NO2

Question 2

When an electron is added to an atom, a(n) ______________ ion is formed.
 Fill in the blank(s) with correct word


ankilker

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Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

negative


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Shelles

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Reply #2 on: Jul 28, 2018
Thank you!


ankilker

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Reply #3 on: Jul 28, 2018
Always glad to help...


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