Additional resources

• Chemical reactions: https://www.khanacademy.org/ science/ chemistry/ chemical-reactions-stoichiometry [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)]
• Balancing equations: http://www.bbc.co.uk/ schools/ gcsebitesize/ science/ aqa/ fundamentals/ chemicalreactionsrev3.shtml
• Balancing symbol equations: http://www.creative-chemistry.org.uk/ gcse/ revision/ equations/ 02.htm
• A video about balancing equations: https://www.youtube.com/ watch?v=_B735turDoM
• A video about chemical reactions and equations suitable for Class X: https://www.youtube.com/ watch?v=YKMWUeem1TI
• CBSE exam papers and questions: http://cbse-notes.blogspot.co.uk/ 2012/ 04/ class-10-science-ch1-chemical-reactions.html