Looking for chemistry tutor for high school level in UK

I'm looking for a patient chemistry tutor to help my high school student grasp key concepts and improve problem‑solving skills. The lessons should cover topics related to organic and inorganic chemistry, stoichiometry, balancing equations, and laboratory safety basics. We prefer a weekly session of 1.5 to 2 hours, with practice problems and short quizzes to track progress. Ideally, the tutor is comfortable explaining complex ideas clearly, can provide real-world examples, and has experience tutoring UK GCSE/A-level standards. Flexible schedule, but lessons should start after 4 pm on weekdays or on Saturday afternoons. Access to online whiteboard and shared practice sheets is a plus.