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Author Question: Water softeners remove all of the following ions EXCEPT A) Ca2+. B) Fe2+. C) Mg2+. D) ... (Read 54 times)

cagreen833

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on: Aug 27, 2018
Water softeners remove all of the following ions EXCEPT
 
  A) Ca2+.
  B) Fe2+.
  C) Mg2+.
  D) Na+.

Question 2

Approximately what percentage of the total solar radiation that falls upon the earth is immediately reflected back into space?
 
  A) 15
  B) 30
  C) 45
  D) 70


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bubulittle310@msn.cn

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

D

Answer to Question 2

B


cagreen833

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Reply #2 on: Aug 27, 2018
Thank you!


bubulittle310@msn.cn

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Reply #3 on: Aug 27, 2018
Always glad to help...


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