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Author Question: Bathtub ring is caused by A) the action of ammonia with water. B) precipitation of soap by hard ... (Read 85 times)

vicotolentino

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Bathtub ring is caused by
 
  A) the action of ammonia with water.
  B) precipitation of soap by hard metal ions.
  C) rust formation from sulfur in the water.
  D) soap and water cause a ringing sound in the ears.

Question 2

Which of the following bases is found in RNA but not in DNA?
 
  A) adenine
  B) cytosine
  C) guanine
  D) uracil



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amanda_14

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Answer to Question 1

B

Answer to Question 2

D




vicotolentino

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Reply 2 on: Aug 27, 2018
:D TYSM


milbourne11

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Reply 3 on: Yesterday
Gracias!

 

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