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Electrons are arranged in different shells (sometimes described as an energy levels) around the nucleus with the innermost shell being filled first and then working outwards. The first shell can hold a ma...

Bromine exists as a simple molecular structure- the Br₂ molecules are held together using Van der Waals forces. Whereas Magnesium is a metal and is held together using metallic bonding. Metalic...

balanced equation:  N_{2 (g)} + 3H_{2 (g)} <---> 2NH_{3 (g)}  Both reactants and products are gases, therefore it affect Kp value. This equation reaches equi...

In chemistry we often talk about how 'weak' or 'strong' bonds are. The stronger the bonds are between two atoms, the more (kinetic) energy is required to break them apart. This means that more heat is nee...

This question can be split up into two parts, and uses two key equations: 

It's always a good idea to look at what information we have been given already, and work out what we can do with it!...