Substrand: "9.7 More chemical reactions"
(8 periods)
Chemical reactions occur around us every day. We observe colour change or heat release during a chemical reaction. Chemical equations are scientific way of representing a reaction it shows reactants and products of a chemical reaction. Chemical equations are balanced to show equal number of each type of atom on both side of the equation.
9.7.1.1 describe four common chemical reactions that occur around us. i. cell respiration ii. photosynthesis iii. rusting of Iron iv. burning of Carbon
9.7.2.1 perform the following chemical reactions and write word equations for each reaction performed: i. burning of wood ii. burning of paper iii. metal & oxygen iv. acids & bases v. acids & carbonates