Over a million students use our free study notes to help them with their homework
Crude oil is a natural mixture of many different hydrocarbons. These hydrocarbons can be separated using a process known as fractional distillation.The crude oil is heate...
Benzene has delocalised pi- electrons spread over all 6 Carbon atoms in the ring structure. Therefore, there is insufficient electron density above and below any two carbon atoms in the structure so be...
Ionic bonding by definition is the electrostatic forces of attraction between oppositely charged ions. What this means is, when metal atoms lose an electron to become a positively charged ion (Na+) and...
Buffer solution is a system that minimises the change in pH when a small amount of acid or base is added. There are two types of buffer solutions- alkaline buffer solution and acidic buffer solution. The ...
First, look at the Periodic Table. Potassium is in group 1 so has a +1 charge, Li+Sulphates always have a -2 charge, SO4 2-Now combine two ions together so we can ge...
←
402
403
404
405
406
→
Internet Safety
Payment Security
Cyber
Essentials