Candidate's Strength

Candidates were able to:

• solve questions on mass – mass relationships;
• state the difference between a simple sugar and starch;
• write the chemical equation to show the dissociation of H₂CO₃ and CH₃COOH;
• state the uses of sodium trioxocarbonate (IV);
• solve questions on solubility and determine the percentage of substance in a saturated solution cooled;
• state the important points of Dalton’s Atomic Theory;
• state a test to confirm the conversion of sulphur dioxide to tetraoxosulphate (VI) acid;
• write a balanced chemical equation for the complete combustion of carbon;
• use Dalton’s atomic theory to explain the law of multiple proportions.