Marking Scheme Chemistry -

Take a past paper. Answer it. Then take the mark scheme and mark it as hard as a robot would.

These are often the hardest. They usually require a causal link: "Because..." marking scheme chemistry

For example, in a stoichiometry problem, the answer key says "2.5 moles." The marking scheme says: "Award 1 mark for correctly balancing the equation, 1 mark for calculating the molar mass, and 1 mark for the final answer." If a student gets the final answer wrong due to a calculator error but followed the correct chemical logic, the marking scheme saves them. Take a past paper