The Ultimate Review Packet is designed to help you learn and practice chemistry with study guides, summary videos, practice questions, and FRQs. The Ultimate Exam Slayer is your secret weapon for test-day domination, packed with expert test tips, targeted multiple-choice questions, and an AP® Exam simulator to ensure that you're fully prepared and confident. Master the content with the Review Packet, then crush the exam with the Exam Slayer!


5 star rating

The best!

julie young

Best purchase of my entire life! I had never struggled in a class until AP Chemistry and I would be failing the class if it weren’t for Mr. Krug. My whole cl...

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Best purchase of my entire life! I had never struggled in a class until AP Chemistry and I would be failing the class if it weren’t for Mr. Krug. My whole class is obsessed with his videos and if someone got a really high grade on a quiz or a test, we say it’s because of Mr. Krug. Thank you Mr. Krug!!

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5 star rating

AP chem

Sura Alosayat

best course, and the practices are very clear, helpful and efficient

best course, and the practices are very clear, helpful and efficient

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5 star rating

Excellent!!!!

Mia Palomo

This course is literally helping me so much understand the topics better. Ik that I'll get a 5 on the test cause it's been sooo helpful. Mr. Krug is such a d...

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This course is literally helping me so much understand the topics better. Ik that I'll get a 5 on the test cause it's been sooo helpful. Mr. Krug is such a diva for putting this together. Literally saving lives ❣️

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5 star rating

Explains everything clearly

Quinten McLaughlin

Relies on understanding concepts instead of just memorization. This means that there are very little concepts you will straight up just be "stuck" on, becaus...

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Relies on understanding concepts instead of just memorization. This means that there are very little concepts you will straight up just be "stuck" on, because everything builds off each other and nothing comes out of nowhere. There's always a path to follow if you don't understand. Very well structured course.

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5 star rating

Really darn good

Oscar Machado Morón

Its just great!

Its just great!

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5 star rating

Very helpful!

Katherine Gunduz