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Author Question: Soft water contains relatively large concentrations of A) iron ions. B) magnesium ions. C) ... (Read 267 times)

ts19998

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on: Aug 27, 2018
Soft water contains relatively large concentrations of
 
  A) iron ions.
  B) magnesium ions.
  C) potassium ions.
  D) calcium ions.

Question 2

All of the following statements are true of hard water EXCEPT
 
  A) it contains calcium salts.
  B) it contains iron salts.
  C) it contains only Na+ and K+ ions.
  D) it forms an insoluble scum with soap.

Question 3

Chlorinated hydrocarbons have been used as insecticides.
 
  Indicate whether the statement is true or false


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vish98

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

C

Answer to Question 2

C

Answer to Question 3

TRUE


ts19998

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  • Posts: 531
Reply 2 on: Aug 27, 2018
Gracias!

kjohnson

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Reply 3 on: Yesterday
Excellent

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