chemistry

Hey everyone, Is it easier to get a better ATAR is economics or chemistry?

Hey everyone, I’m currently in Year 11 doing Advanced Maths, bio, Chem, Hospitality, Modern History and Advanved English. I’ve been struggling with advanced maths the whole year and somehow no matter how much study I put in nothing positive seems to come out of it as the result stays the same...

So basically I have an experiment that states that I need to determine percentage yield of sulfate there is in a fertilizer. These are my calculations and results. (The write up that i have produced is attached. It is expected for me to get around 17% but as you can see i haven't. Also what...