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Author Question: The principal cations in hard water are sodium and potassium ions. Indicate whether the statement ... (Read 127 times)

Charlie

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on: Aug 27, 2018
The principal cations in hard water are sodium and potassium ions.
 
  Indicate whether the statement is true or false

Question 2

Plexiglass is
 
  A) polyvinyl chloride.
  B) polymethyl methacrylate.
  C) polytetrafluoroethy lene.
  D) polyvinyl acetate.


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janeli

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

FALSE

Answer to Question 2

B


Charlie

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Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


janeli

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Reply #3 on: Aug 27, 2018
Great! Please up vote :D


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