Answers by Doug Porter
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Answers by Doug Porter

Answers by Doug Porter
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Pure substances that have properties entirely different from the atoms that make it up are _____.
answered Nov 21, 2018
0 votes
4.0k views
A symbiotic relationship in which one organism is harmed and the other benefits is
answered Oct 2, 2018
3 votes
60.4k views
The densities of several gases at the same temperature are listed below. Considering only density, waves should travel fastest in which gas? Gas Density helium 0.09 kg/m3 hydrogen 0.2 kg/m3 oxygen 1.4
answered Sep 23, 2018
4 votes
231k views
Read the excerpt from “ Crossing Brooklyn Ferry.” Just as you feel when you look on the river and sky, so I felt, Just as any of you is one of a living crowd, I was one of a crowd, Just as you are refresh'd
answered Jul 31, 2018
2 votes
133k views
Find the balance in the account after the given period. $4000 principal earning 6% compounded annually, after 5 yr
answered May 11, 2018
5 votes
47.9k views
What is the purpose of creating tension in a story? A.To describe in specific detail the story's setting B.To move the reader toward the story's climax C.To neatly tie up loose ends at the story's close
answered Apr 5, 2018
7 votes
93.6k views
What would be the advantages and disadvantages of using a jet pack for transportation
answered Mar 2, 2018
5 votes
109k views
How do roots get sunshine?
answered Oct 25, 2017
4 votes
144k views
Simplify this expression b+2+5b
answered Jun 18, 2016
3 votes
188k views
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