Nitrogen and oxygen are gases in the atmoshere.

trace
variable
primary
rare

Nitrogen and oxygen are primary gases in the atmosphere.  

Trace  

Variable  

Primary  

Rare

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

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water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.