Chemistry tomorrow! Aqa urgent helpWatch
I would suggest you revise pollutants, what causes them, their effects and how to reduce them. That always comes up.
I would suggest you learn the processes fractional distillation and cracking and know how to tell them apart. People get them confused.
The same with emulsifiers and hardening.
I have also gone through the specification and looked for things that the exam board has never used. Since this is the last C1 exam with this specification, these things should come up:
Good and bad points of limestone quarrying
Comparing limestone vs concrete vs cement as a building material
Metals as structural materials
The effect of particulate pollutants - global dimming and lung problems
Comparing cornstarch vs plastic bags
The good and bad points of emulsifiers in foods