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Order: hydrogen fluoride > hydrogen bromide > hydrogen.Hydrogen fluoride contains a hydrogen atom bonded directly to a fluorine atom. The fluorine is highly electronegative and so pulls the bonding ...

Have you ever tried to run the wrong way down an escalator? then you have experienced a dynamic equilibrium.You are moving up, it is moving down and yet, your actual position isn't changing. In a reaction...

a) Partially filled/incomplete d shell.
b) Light is absorbed by an electron, exciting it and is promoted to a higher energy d orbital. The colour seen is the complimentary colour of that absorbed (in...

0.025 dm^3 x 0.1 mol dm^-3 = 0.0025 molsince mols must be equal:mols of HCl = 0.0025/0.01 =250cm^3To get to the answer I would first check the student was first able to identify the key words and numbers ...

Covalent character occurs in ionic bonds when the postive (usually metal) ion is highly charge dense and can polarise the counter ion causing electrons to be shared between the two ions rather than electr...