The formula is made up of symbols and numbers. The numbers are written as subscript, which means they are smaller than the symbol, and slightly lower down. For example, the formula for water is H₂O.

SA parents are invited to join the conversation, SACAP Parents’ Guide to Matric support webinar from 10:00 to 11:30 on Saturday, 19 August 2023. Registration is free and you can RSVP on Zoom here.