Chemistry Calculator
Chemistry Problems
Mole Calculator
Stoichiometry Calculator
Balancing Equations Calculator
Chemistry Answers
Explain why first ionisation energy decreases down a group.
A Level
Related A Level Questions
Q3. A third beaker, C, contains 100.0 cm^3 of 0.0125 mol/dm^3 ethanoic acid ( Ka = 1.74 × 10^−5 mol/dm^3 at 25 ºC). Write an expression for Ka and use it to calculate the pH of the ethanoic acid solution in beaker C.
Explain the relative resistance to bromination of benzene compared with alkenes.
At what temperature does the reaction become feasible? When ΔH = 492.7 kJmol^-1 and ΔS = 542.6 JK^-1mol^-1.
Explain trend in why the ionisation energies increase across the period
How do you deal with remembering all the knowledge required for organic chemistry questions?
Levels
All Levels
11 plus
13 Plus
A Level
GCSE
IB
KS3
Mentoring
Scottish Highers
University