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Cuando se considera que apareció la vida en la tierra
answered
Jun 22, 2019
History
high-school
3
votes
59.5k
views
In the reaction Mg+Cl2=MgCl2 what should be the coefficient for Cl2
answered
Jan 12, 2019
Chemistry
college
5
votes
177k
views
Please help me i really need help
answered
Nov 29, 2018
Mathematics
high-school
1
vote
196k
views
Which of the following best describes the medicine of islamic caliphites?
answered
Nov 2, 2018
History
middle-school
2
votes
90.8k
views
The vapor pressure of 10 mL of ethanol at 20C is 5.85 kPa. What is the vapor pressure of 20 mL of ethanol at the same temperature?
answered
Oct 28, 2018
Chemistry
high-school
6
votes
221k
views
A consequence of a yo-yo dieting is that
answered
Jul 17, 2018
Health
high-school
6
votes
160k
views
The reproductive organ of most plants is the flower. This is the life cycle of one type of flowering plant: the bean plant. Where in this life cycle would we find the union of sperm and egg?
answered
Apr 19, 2018
Health
college
4
votes
18.3k
views
What do some scientists hypothesize will happen if the universe continues to expand?
answered
Mar 29, 2018
Physics
high-school
5
votes
135k
views
1/4 (20x+8)+3=0 show work
answered
Nov 14, 2017
Mathematics
high-school
3
votes
208k
views
Which pair of basic questions guides geographers in their work? A. where are things located? and why are they there? B. what is climate? and why has it changed? C. when did the earth form? and what is
answered
Sep 22, 2017
Geography
middle-school
0
votes
65.3k
views
Find the rate of change from 1 minute to 2 minutes
answered
Sep 15, 2017
Mathematics
middle-school
5
votes
182k
views
Which of the following statements is NOT true? Pulmonary arteries transport blood low in oxygen from the right ventricle to the lungs Veins carry blood away from the heart. Capillaries form the connection
answered
Aug 25, 2017
Health
high-school
1
vote
163k
views
Two classmates are preparing research papers and are organizing their information on index cards. Keiko is using 3 in. x 5 in. cards. William is using 4 in. x 6 in. cards. A. Set up a proportion to determine
answered
Jan 10, 2016
Mathematics
middle-school
7
votes
190k
views
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