David S.
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About David S.
Subjects
Calculus, Calculus BC, Chemistry, Physics, Spanish
Education
Bachelors in Chemical Engineering from Universidad Nacional de Colombia
Reviews 
(292)
Caryn
Science - Chemistry
Oct 5, 2026
I enjoy the chemistry tutor's support. He helped me with conversion information, placing the units and molar mass calculations. He is very brilliant, I look forward to working with him soon.
Graci
Science - Organic Chemistry
Jun 23, 2026
this tutor was very helpful and ensured i was understanding what was happening and why we need to do it that way, he was thorough and ensured understanding while also correcting my mistakes while showing me why they were wrong.
Angelina
Science - Chemistry
Jun 16, 2026
David was literally a lifesaver!! He explained everything I was confused about so well.
Jessica
Science - Organic Chemistry
Feb 6, 2026
Great help - thank you
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