Chemistry, 07.11.2019 08:31 nonispn606
Scientists make the claim that the continents of north america and eurasia were once located very close to
each other. the scientists observe patterns in data to support this claim.
choose two pieces of evidence that support the scientists' claim.
a. animal fossils found on each continent are different
b. the same type of animal fossils are found in north america and eurasia
c. only granite contains fossils on each continent
d. the same rock types are found in north america and eurasia
e. mountain ranges are located on the coasts of both north america and eurasis
f. the edges of the coasts of north america and eurasia almost fit together like puzzle
pieces
Answers: 2
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 13:30
Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
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Chemistry, 22.06.2019 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
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Chemistry, 23.06.2019 10:30
When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?
Answers: 1
Scientists make the claim that the continents of north america and eurasia were once located very cl...
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