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Author Question: What is the term for the two series of elements that include Ce-Lu and Th-Lr? A) rare earth ... (Read 61 times)

rayancarla1

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on: Aug 27, 2018
What is the term for the two series of elements that include Ce-Lu and Th-Lr?
 
  A) rare earth elements
  B) representative elements
  C) transition elements
  D) inner transition elements
  E) none of the above

Question 2

Calculate the molarity of phosphoric acid (H3PO4 ) in a 38.4 (by mass) aqueous solution.
 
  A) 0.115 m
  B) 0.206 m
  C) 0.0514 m
  D) 0.103 m
  E) The density of the solution is needed to solve the problem.


pangili4

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

D

Answer to Question 2

E


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