Analyse the equation
Go to this page and watch the video which shows you how to check to see if an equation needs to be balanced.
Take notes to summarise the key points. Stop the video and replay bits you miss. Go back to the Key Skill Course and re do the ' taking notes' class if you have forgotten how to take notes from a video or lecture.
The next task is a quiz that checks to make sure you get it. When you have finished watching it and think you get what it is telling you come back and do the next task, which is a quiz.
Here is the video.