Become a pro at adding and subtracting exponents in your head.
Expect to draw or interpret "dots in a box." Practice representing physical vs. chemical changes using circles to ensure you aren't losing atoms (Conservation of Mass). 3. Math Without a Calculator The Multiple Choice section is no-calculator . Estimation is your best friend: If you see , treat it as Cracking the AP Chemistry Exam
Usually, only one point on the entire exam is dedicated specifically to sig figs—don't let them paralyze you, but keep them in mind for the FRQs. Become a pro at adding and subtracting exponents
State your direct answer (e.g., "The boiling point of NH3cap N cap H sub 3 is higher.") State your direct answer (e
exhibits hydrogen bonding, which requires more energy to overcome than the dipole-dipole forces in PH3cap P cap H sub 3 5. The "Low-Hanging Fruit"