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Chemistry
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Name and explain the process in which crude oil is separated into fractions. (5 marks)

The process is fractional distillation: the separation of a mixture using heat. The crude oil is heated and the mixture will evaporate. The mixture will then rise...

EP
Answered by Emily P. Chemistry tutor
2891 Views

Describe the bonding present in a piece of sodium metal.

A lattice of positive sodium ions with a sea of delocalised electrons distributed around them. The metallic bond consists of the electrostatic force of attracion between the positively charged sodium atom...

MC
Answered by Mark C. Chemistry tutor
13961 Views

Explain whether the boiling point of 1-bromopentane will be higher, lower or the same as that of 2-bromo-2-methylbutane. (3)

1-bromopentane has a higher boiling point than 2-bromo-2-methylbutane Both isomers have vanderwaahls forces and dipole dipole forces 1-bromopentane is a primary isomer whereas 2-bromo-2-methylbutane is a ...

AT
Answered by Abigail T. Chemistry tutor
6771 Views

11.25g of hydrated copper (II) sulfate is heated to constant mass. The new mass is found to be 7.19g. What is the formula of the hydrated copper (II) sulfate?

Hydrated Copper (II) sulfateThe hydrated term means that this compound contains water of crystallisationWater of crystallisation means that there are chemically bonded water molecules wit...

UM
Answered by Una M. Chemistry tutor
6975 Views

What is a difference between gas and liquid and solid on a molecular level?

The difference is in the movement in the molecules and their spatial arrangement.Molecules in gaseous states have the biggest freedom of movement, which means that they can move freely around. This is mai...

MH
4962 Views

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