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A species with one or more valence electron pairs that forms co-ordinate bonds with a metal ion. 

Here, we have to focus on the term strong acid. It is defined as an acid that is dissolved completely in an aqueous solution. We say that the reaction of dissociation of the acid goes ...

58.5

Relative formula mass (M_r) is found by adding together the relative atomic masses (A_r) of all the atoms present in a compound. 

S...

Decreasing atomic radius across the periodic table.

- greater number of protons in the nucleus resulting in a greater nuclear charge.

- little/no change in ...

Alkanes are saturated because they contain only single covalent bonds. Alkenes are unsaturated because they do have double covalent bonds.