If I put a small piece of sodium metal in some water, a reaction occurs. The sodium fizzes and races around and there is an orange flame.
Pythagoras is one of those maths things that sounds a lot more complicated than it actually is. As this is an intro to it, we’ll take a little look at where it all came from first.
Exams are around the corner, you have done mock exam after mock exam and for some reason, every time you attempt that GCSE English Language Paper 1, Question 3, you can’t seem to get above 5 marks!
The chemical concept of a “mole” is very important to be able to perform calculations in chemistry. Remember from your class that an atom’ atomic weight refers to the number of grams in one “mole” of that material.