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Author Question: Which element was rare and valuable until 1886 when an inexpensive way of producing the metal from ... (Read 58 times)

viki

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Which element was rare and valuable until 1886 when an inexpensive way of producing the metal from its mineral ore was discovered?
 
  A) aluminum
  B) copper
  C) nickel
  D) silicon
  E) none of the above

Question 2

A basketball is inflated to a pressure of 1.90 atm in a 24.0C garage. What is the pressure of the basketball outside where the temperature is -1.00C?
 
  A) 1.74 atm
  B) 1.80 atm
  C) 2.00 atm
  D) 2.08 atm



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ecabral0

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Answer to Question 1

A

Answer to Question 2

A




viki

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Reply 2 on: Aug 27, 2018
Wow, this really help


milbourne11

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Reply 3 on: Yesterday
Gracias!

 

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