Search over 10,000 free study notes

First it is important to recognise that this is an ideal gas equation question – the exam boards love these so try to get used to spotting if you have the necessary quantities. This is a multi-step proble...

Group one elements are all metals. They are known as the Alkaline Metals. All of these element atoms have one electron on their outer shell. This means that, when they react, they lose this one electron t...

A hydrogen bond forms between the positive dipole of one molecule and the negative dipole of another molecule. They can be represented on a diagram with a dashed line perpendicular (at 90˚) to the bond an...

Acids react with metals to give a salt and hydrogen gas.Nitric acid + magnesium --> magnesium nitrate + hydrogen2HNO₃+ Mg --> Mg(NO₃)₂ +H₂

An atom is a neutral particle, an ion is a charged particle.Taking a sodium (²³Na) and sodium ion (Na⁺) as an example:Firstly, we need to break down both into their subatomic particl...