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Boiling points are determined by the interactions between the individual hydrocarbon molecules . The weaker the interactions, the less energy is required to boil the hydrocarbon and the lower the boiling poi...

The pH scale is a measure of how many H + ions there are in a solution. The higher the concentration of H + , the lower the pH and the more acidic the solution is. For example, for HCl, dissociation can occu...

To work out the shape of the SF6 molecule we can use a simple equation which allows us to work out the number of electron pairs. The equation is (old group + electrons donated +/- charge) / 2. If the charge ...

Milgram’s study in 1963 aimed to explore the idea of obedience to see whether people would blindly follow orders from an authority figure. He gathered 40 participants aged 20 to 50 who volunteered from an ad...

As you move across the period you are adding one more proton which increases the nuclear charge, you are also adding one more electron, however, the shielding provided by the extra electron is less than the ...