Top answers

Chemistry
GCSE

By discussing the structure and bonding properties of chlorine and sodium chloride, explain why chlorine is a gas at room temperature but sodium chloride is a solid.

Within the chlorine molecule, there are covalent bonds present between each atom of chlorine. This results in the formation of simple molecules, meaning there are no bonds between molecules of chlorine. A...

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Answered by Alex T. Chemistry tutor
16777 Views

What is Cracking and why is it carried out?

Cracking is the process of breaking large Hydrocarbon molecules into smaller ones.
This is carried out to refine fuels and increase the yeild in petrolium refining. 

AG
Answered by Anna G. Chemistry tutor
11253 Views

If an element has an atomic mass of 19 and a proton number of 9, how many neutrons does it have and how many electrons does it have?

The atomic mass is made up of all the protons and neutrons (which together form the nucleus) which each have a mass of approx. 1g. Therefore if the mass of the element is 19g and it has 9 protons (proton ...

JT
Answered by Jay T. Chemistry tutor
19308 Views

Calcium carbonate is burnt substance B is created. What is the formula for substance B and what is the equation when water is added?

Cao

Cao + H20 --> Ca(OH)2 

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Answered by Thomas N. Chemistry tutor
2363 Views

What are the components of an atom and what are their properties?

An atoms is composed of a central NUCLEUS, with ELECTRONS occupying shells, moving around the nucleus.

The nucleus is composed of PROTONS and NEUTRONS.

The PROTON...

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Answered by Axel R. Chemistry tutor
6275 Views

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