Search over 10,000 free study notes

Br2 molecules are larger than Cl2 molecules, so more electrons are present in Br2 molecules. Therefore there are stronger van der waals forces between Br2 molecules than Cl2 molecules, so more energy is n...

2 parts to question: describe and explain

Volcanoes:

Formed where two plates meet and the less dense plate is forced under another in the Benioff zone - the...

The first thing you want to do is really make sure you understand the question: this is something that is worth spending time on. Questions are often provocative for a reason: think about what tensions co...

The idea that knowling something is the same as having a true justified belief has been around since Plato. However, in 1963 Edmund Gettier demonstrated that not all true jusfied beliefs count as knowledg...

3cos(2A)-5cos(A)+2=0. The first thing we do is use a trignometric identity, namely cos(2A) = 2(cos^2(A))-1. This gives us a new form of the original equation.

3(2(cos^2(A))-1)-5cos(A)+2=0: we expan...