The elements that belong to the third period of the periodic table are?

A metal X forms two bromides with the formulae XBr2 and XBr3. What type of bonding exists between X and bromine in the bromide?

A mixture of petrol and water can be separated through

Which of the following represents an aromatic compound?

CH\(_3\)CH\(_2\)Cl + KCN → CH\(_3\)CH\(_2\)CN + KCl

In the reaction above, the cyanide is