High School Chemistry
Mrs. Cauthron's Guide to Must-Know Facts
Some chemistry you figure out. The rest you just have to know. This is the “just have to know” list — eight topics, with flash cards, quizzes that regenerate, and worked sample problems for each one.
The Eight Must-Know Topics
Pick a topic, read the facts, then hit the practice tools at the bottom of the page. Ten focused minutes beats an hour of re-reading your notes.
Polyatomic Ions
The charged groups that show up in half of every naming question.
Topic 02Metric Prefixes
Kilo to nano — the conversions behind every unit problem.
Topic 03Solubility Rules
Which ionic compounds dissolve, and which crash out as a precipitate.
Topic 04Shapes of Chemical Bonding
VSEPR geometry, bond angles, and why water is bent.
Topic 05Periodic Table Trends
Radius, ionization energy, electronegativity — and why they move that way.
Topic 06H and 2nd Shell Electronegativity
The handful of numbers you're expected to recall cold.
Topic 07Wavelengths of the Electromagnetic Spectrum
Radio to gamma — the size ranges and the order.
Topic 08Examples of the Electromagnetic Spectrum
Real-world sources for every region of the spectrum.
Al says…
Study in short bursts, not marathons. Fifteen minutes a night with flash cards will beat a three-hour panic session the day before the test — every single time.