CHM 10100 practice

• Class by classThe term as it is scheduled, with the practice, the homework and the lab for each class in one place.practice/classes
• Class notesWhat each lecture covered, with links to the practice for it. Added after each class.practice/notes
• ReviewsGraded work, class by class: what each mark was for, the working that earns it back, and practice on what was missed. The Lab 3 report and Quiz 3 so far.practice/reviews
• Math skillsThe algebra the course runs on: solving for x, signs, fractions, proportions, rearranging every exam formula including the squares and roots, weighted averages, final temperatures and scientific notation. The Math Review quiz, drills with every step shown, and rounds of ten.practice/math
• LabsData sheets that do the arithmetic, and what each lab asked for. Lab 3 density is up, with the formal report checklist for Lab 4.practice/labs

Measurement and units Chapter 1

• Metric prefixesFlashcards for kilo, milli, micro and the rest, then quiz rounds of factors, symbols and conversions.practice/measurement/prefixes
• Unit TracksDimensional analysis. Set up conversion factors, watch the units cancel, calculate, then round to the right sig figs.practice/da
• CalculatorA scientific calculator with a tape, memory keys, chemistry constants, a scientific-notation converter, and a cylinder solver that shows the algebra step by step.practice/da/calculator

Interatomic theory Chapter 2

To know by heart

• Symbols and ionsFlashcards for the two lists the course says to learn now: 45 element symbols, and the polyatomic ions, either the 14 in bold or the whole sheet. Flip them or type the answers.practice/flashcards

Atomic theory, 14 September

• From Dalton to ChadwickDalton's atomic theory and the experiments that followed, with drawn diagrams, reading links, practice by section and rounds of ten questions.practice/atomics/dalton-to-chadwick
• Atomic theory questionsThe Chapter 2 in-class questions, answered and checked one part at a time.practice/atomics/atomic-theory
• Law of multiple proportionsWorked examples from real compounds, practice problems from lab data, and rounds of ten questions.practice/atomics/multiple-proportions

Atoms and the periodic table, 16 and 18 September

• Atoms and the periodic tableProtons, neutrons and electrons, isotope symbols, average atomic mass, and reading a group off the table. The in-class sheet, practice and rounds of ten.practice/atoms
• ElementsAn article on every element, reachable from a clickable periodic table or a search.practice/atomics/elements
• Element familiesAlkali metals, halogens, noble gases and the rest: a colored table, what each family does, and a quiz.practice/atomics/families
• Element triviaWhere the names came from, who found what, and why sodium is Na. Read the stories, then quiz yourself.practice/atomics/trivia

Compounds, Monday the 21st

• CompoundsWhat a formula counts, the five ways to draw one molecule, empirical against molecular, ions and the lattice they build, hydrates, and naming in both directions. The in-class sheet, generated practice and rounds of ten.practice/compounds
• Polyatomic ionsNames, formulas and charges, with a page on each of the thirty. A list you can cover up, the naming patterns, and rounds of ten questions.practice/atomics/polyatomic-ions
• DiatomicsThe seven elements found in nature as pairs, with a page on each element and each molecule.practice/atomics/diatomics
• IsomersSame formula, different structure, different substance. Drawn examples with their properties, cis and trans, chiral and not, plus drills.practice/atomics/isomers

Substances and solutions Chapter 3

• The moleFormula weight, molar mass, counting particles by weighing them, and empirical and molecular formulas, by mass percent and by combustion. The Chapter 3 in-class questions, generated practice and rounds of ten.practice/moles
• SolutionsSolute and solvent, molarity, dilution, and mass percent, ppm and ppb. The six in-class questions, generated practice and rounds of ten.practice/solutions

Stoichiometry of chemical reactions Chapter 4

• Chemical equationsBalancing, the five kinds of reaction, ionic compounds in water, the solubility rules, and precipitation written molecular, total ionic and net ionic. The in-class sheet, practice, rounds of ten, an atom counter and a solubility lookup.practice/equations
• Acids, bases and redoxStrong and weak acids and bases, neutralisation and its net ionic equation, oxidation numbers, what is oxidised and what is reduced, and balancing by half-reactions in acid and base. With an oxidation-number checker and a half-reaction counter.practice/redox
• StoichiometryMole ratios, grams to grams, the limiting reactant and what is left over, theoretical and percent yield, titration and gravimetric analysis. Tools take your own homework numbers through the mole map, a limiting reactant table and a titration, box by box.practice/stoichiometry