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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 83 times)

vicotolentino

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

B

Answer to Question 2

D


vicotolentino

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Reply 2 on: Aug 27, 2018
Gracias!

scottmt

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Reply 3 on: Yesterday
:D TYSM

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