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Author Question: A piece of metal ore weighs 8.25 g. When a student places it into a graduated cylinder containing ... (Read 106 times)

cdr_15

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on: Aug 27, 2018
A piece of metal ore weighs 8.25 g. When a student places it into a graduated cylinder containing water, the liquid level rises from 21.25 mL to 26.47 mL. What is the density of the ore?
 
  A) 0.312 g/mL
  B) 0.633 g/mL
  C) 1.58 g/mL
  D) 3.21 g/mL

Question 2

An atom of 131Xe contains ________ electrons.
 
  A) 131
  B) 185
  C) 77
  D) 123
  E) 54


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tsternbergh47

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

C

Answer to Question 2

E


cdr_15

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Reply 2 on: Aug 27, 2018
Gracias!

mohan

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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