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As the number of carbon atoms increases, the boiling point increases.

It is a type of bonding where there is an electrostatic attraction between negative charged ions and positive charged ions. In this way atoms chemically combine, to produce a compound.

Use a clean platinum wire loop. To clean the loop, dip in dilute HCl and hold in flame until the flame burns without any colour. Then dip clean loop into samples. Li+ turns the flame red, Na+ yellow\orang...

More reactive halogens displace less reactive halogens. The more reactive halogens are those at the top of the group, as their outer electron shells (negatively charged) are closer to the nucleus (positiv...

The Avogrados constant the number of atoms in a mole. This is 6.02 x10^23.
The number of moles are calculated through diving the mass (g) by the relative molecular mass of an element.