Thursday morning's test covered how substances interact, combine, and change - and pupils were thrilled it stuck to their revision topics.
Nonetheless, reaction to the chemistry paper was overwhelmingly positive.
But not everyone agreed.
Responding to criticism of its Biology paper, AQA said on Tuesday: "Exams aren’t meant to be easy and students are obviously going to tweet about that, but there was nothing wrong with this paper. We wish everyone the best of luck with the rest of their exams."