Volunteer tutor needed: chemistry for a motivated student in Liverpool

My son, Nicholas, is 12 and in Year 10. Nicholas loves school but chemistry has been a struggle since the school was closed during the strikes. The university entrance exam is in September. We can't afford a private tutor, and the school's free sessions are full. We're looking for a volunteer who could spend one or two hours a week, in person in Liverpool or online, for about sixteen weeks. Nicholas is polite, hardworking and eager. We have a quiet space and a laptop for online sessions. I'll always be at home for in-person sessions. If you're a teacher, student or professional who feels comfortable in chemistry, you could change the course of Nicholas's year. Even a small gift gets used right away and I'll thank you myself.