Chemistry, 18.04.2021 17:20 isabelgarcia188
B) The alkanes from crude oil are separated into fractions by fractional distillation. Explain how this is
done and why it separates the alkanes into fractions.
(5)
Answers: 1
Chemistry, 22.06.2019 02:40
How many liters of hydrogen gas will be produced at stp from the reaction of 7.179Ă—10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2
Answers: 1
Chemistry, 22.06.2019 06:00
How many atoms of mg are present in 97.22 grams of mg? 6.022 Ă— 1023 2.408 Ă— 1024 4.818 Ă— 1024 5.855 Ă— 1025
Answers: 3
Chemistry, 22.06.2019 23:00
What is the measured amount of a product obtained from a chemical reaction?
Answers: 1
Chemistry, 23.06.2019 05:30
The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.
Answers: 3
B) The alkanes from crude oil are separated into fractions by fractional distillation. Explain how t...
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