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Which element is able to combine in many ways with different elements and is therefore considered the basis of life? A. oxygen B. nitrogen C. carbon D. hydrogen HELP ASAP
asked
Dec 18, 2020
Chemistry
middle-school
2
answers
3
votes
176k
views
On which day does it appear that Frank and Erica will have the same number of ribbons left to sell? F Day 15 G Day 48 N Day 33 H) Day 18
asked
Dec 10, 2020
Mathematics
middle-school
1
answer
0
votes
11.8k
views
The amino acids for beta hemoglobin found in five animal species were compared to the amino acids found in human (Homo sapiens) beta hemoglobin. The number of sequence differences was recorded. Based on
asked
Dec 4, 2020
Biology
high-school
2
answers
0
votes
188k
views
A balloon filled with helium occupies 20.0 l at 1.50 atm and 25.0◦c. How many moles of helium will there be in the balloon at stp?
asked
Jun 8, 2020
Chemistry
high-school
1
answer
5
votes
180k
views
What is the preferred method for assesing heart rate during chest compression in newborn
asked
Feb 27, 2020
Medicine
middle-school
2
answers
4
votes
84.8k
views
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