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Author Question: Which element was rare and valuable until 1886 when an inexpensive way of producing the metal from ... (Read 70 times)

viki

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

A

Answer to Question 2

A


viki

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Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

aliotak

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

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