Chemguy vs Mentor Union

The Chemguy App has arrived! I'm Rob Lederer and I taught chemistry for 35 years. I've taught all high school levels of chemistry, including AP Chemistry and IB Chemistry, too! Since 2003, I have been known as Chemguy to the students outside of my classroom. My Chemguy YouTube videos have millions of views. The Chemguy App that I have personally built has distilled my teaching career into a course that completely covers high school chemistry, AP and IB material, and first year university chemistry. Everything is covered: The Periodic Table, Compounds and Reactions, Stoichiometry, Solutions, Gases, Atomic Theory, Chemical Bonding, Molecular Shapes, Energy, Electrochemistry, Chemical Equilibrium, Acids and Bases, Organic Chemistry, Chemical Kinetics, Thermodynamics, and Calculating Uncertainty Values. Phew! This is what you get in the Chemguy App: 1. Over 200 video lessons, where I teach all the chemistry principles, give detailed explanations, and problem-solve through all the calculations in every unit of study. 2. My entire classroom note package. All the material explained, with tables and diagrams and pictures. At the end of each lesson there are practice problems, over 1000 in all, to hone your chemistry skills. 3. Tests! I have made close to 100 interactive quizzes for all the lessons and summary unit exams, too! That's a total of over 1000 questions to practice! 4. Chemguy Messaging. After going through all of the above, is there still something that you need help with? Send me a text in the chat function of the app! Let's talk about it! So, watch the videos, read the notes, do the practice problems, have fun with the quizzes, and cap each unit off with the exam. And if something is bugging you, chemistry-wise, send me a message and let's chat about it! If you want to know more about me, what I've done and what I continue to do, please visit my website, roblederer.ca

Mentor Union connects you with mentors who have already walked the path you're on — and makes it effortless to actually get time with them. Find the right mentor, book a 1:1 call that fits your calendar, and keep every insight in one place. Whether you're seeking guidance or giving it, Mentor Union is built for both sides of the conversation. FOR MENTEES • Discover mentors by domain, expertise, industry, company and years of experience • Sort by best match, highest rated, earliest availability or newest mentors • Explore full profiles: background, designation, ratings and completed sessions • Request a call by proposing the times that work for you • Join your session directly from the app • Reschedule or cancel in a couple of taps • Track your assigned, used and available credits • Share feedback after every call FOR MENTORS • Publish your availability and let mentees book around it • Review incoming requests and accept the slot that suits you • See your impact: profile views, search appearances, completed calls and no-shows • Understand your feedback with rating breakdowns across skills • Follow your earnings over time and review every invoice • Manage banking details and engagement letters in one place BUILT AROUND YOUR TIME ZONE Every slot, reminder and call time appears in your own time zone. Change it once and the whole app follows, so there is no mental math before a meeting. STAY ORGANISED • Journal: keep notes and documents from every session • Notifications: reminders for upcoming calls, requests and updates • Support: raise a ticket and follow the conversation without leaving the app Mentorship works when it is easy to show up. Mentor Union makes showing up the easy part.