Three prompts in each subject are free to try. One subscription opens every subject and every prompt in senior secondary, or subscribe your whole school. Already have a code? Enter it here.
46 prompts matching "Explaining a group trend by nuclear charge alone"
Calculation practice: Calculating the yield of a named fraction
Act as my SS2 Chemistry tutor. Walk me through calculating the yield of a named fraction a
Calculation practice: Calculating the mass of fertiliser from a mass of ammonia
Act as my SS2 Chemistry tutor. Walk me through calculating the mass of fertiliser from a m
Calculation practice: Calculating the mass of iron from a mass of ore
Act as my SS2 Chemistry tutor. Walk me through calculating the mass of iron from a mass of
Calculation practice: Calculating the amount remaining after several half-lives
Act as my SS2 Chemistry tutor. Walk me through calculating the amount remaining after seve
Calculation practice: Calculating output and efficiency for a plant
Act as my SS2 Chemistry tutor. Walk me through calculating output and efficiency for a pla
Calculation practice: A mixed set of SS2 Chemistry calculations
Act as my SS2 Chemistry tutor. Walk me through a mixed set of SS2 Chemistry calculations a