Chemistry, 11.01.2020 23:31, bgallman153p71edg
Which of the following correctly identifies steps used in the fractional distillation of petroleum?
the mixture is cooled, condenses, then heated and boils.
the mixture is cooled, boils, then heated and condense.
the mixture is heated, condenses, then cooled and boils.
the mixture is heated, boils then cooled and condenses.
Answers: 1
Chemistry, 22.06.2019 14:00, hannahhoskings6989
What was bohr’s contribution to the planetary model
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Chemistry, 23.06.2019 05:30, hongkongbrat6840
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
Chemistry, 23.06.2019 07:30, lifeislove3251
Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __
Answers: 1
Which of the following correctly identifies steps used in the fractional distillation of petroleum?...
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