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Atoms of what two elements are in every organic compound? a. calcium and helium b. carbon and oxygen c. cobalt and hydrogen d. carbon and hydrogen
answered
Jul 23, 2018
Chemistry
high-school
4
votes
109k
views
Heat and pressure deep beneath earths surface can change any rock into
answered
Mar 25, 2018
Biology
middle-school
5
votes
68.6k
views
What is 12/84 as a unit fraction
answered
Nov 2, 2017
Mathematics
middle-school
0
votes
37.2k
views
PLEASE HELP ME WITH MY HOMEWORK!!!!! 2. A metal bar is 100cm long. It is heated for an hour. What could be the new length of the bar? a)102cm b)99cm c)98cm d)99.2cm 3. Why are there gaps in concrete roads?
answered
Sep 29, 2017
Chemistry
middle-school
3
votes
108k
views
the perimeter of a rectangular window is 634 inches if the length of the window is 205 inches what is the width of the window
answered
Apr 2, 2017
Mathematics
middle-school
6
votes
220k
views
The fda has the role for protecting the health of the public and establishing the correct food production.
answered
Mar 15, 2017
Health
high-school
1
vote
129k
views
How many arrays can you make with 24
answered
Apr 27, 2016
Mathematics
middle-school
2
votes
74.6k
views
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