GCSE Chemistry C6- OCR 21st century Science Printable revision cards

These revision cards should cover everything you need to know for the C6 OCR 21st Century Science syllabus. If you want to print them, you'll have to fold each card where the blue line in the middle is and glue it down. You can then use it to test yourself on the questions. I recommend going through the cards once before you revise and put the cards into two piles; Know, and Need to revise. Then go through and learn the cards in the Need to revise pile. I hope these are as useful for you as they were to me. Good luck! :)

This link (that I give all credit to studydoctor.co.uk) has a brilliant explanation of how to calculate the purity: Titration and purity