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Puzzle posted by Dady Uhs

+1 vote
Which sample will process the greatest mass of hydrogen when treated with water: a) CaH2 b) LiH c) MgH2 d) NaH
posted Mar 10, 2017
  • chemistry
+1 vote
A uniform plank of langth L is supported by two forces F1 and F2 at the distance of L/8 and L/4 from end. What is F1/F2?
posted Mar 9, 2017
  • mathematical
+1 vote
Insert the missing number in the following pattern?
posted Mar 2, 2017
  • logic
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