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Author Question: The most abundant rocks in Earth's crust are the a. sulfides. b. oxides. c. carbonates. d. ... (Read 59 times)

sdfghj

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The most abundant rocks in Earth's crust are the
 a. sulfides.
  b. oxides.
  c. carbonates.
  d. silicates.

Question 2

Ammonia, NH3, boils at a higher temperature than phosphine, PH3 . This is probably due to
 a. ammonia being more dense than PH3.
  b. ammonia having the lower formula mass.
  c. hydrogen bonding among the NH3 molecules.
  d. ammonia being ionic and phosphine being covalent.



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Bison

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Answer to Question 1

d

Answer to Question 2

c




sdfghj

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Reply 2 on: Jul 28, 2018
Gracias!


tanna.moeller

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Reply 3 on: Yesterday
Wow, this really help

 

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