Dividing powers with the same bases Student activity Play

Dividing powers with the same bases: the fractions and the decimals Whiteboard exercise Play

Early attempts to classify chemical elements (1) Student activity Play

Electrolytic dissociation (1) Simulation Play

Electrolytic dissociation (1) Student activity Play

Electron configuration and the periodic table (1) Student activity Play

Electron shells and subshells (1) Student activity Play

Electronegativity and the nature of bonds (1) Student activity Play

Elimination reactions in halogenated hydrocarbons (1) Student activity Play

Enzymes are specific and selective (1) Simulation Play

Enzymes are specific and selective (1) Whiteboard exercise Play

Enzymes are specific and selective (1) Student activity Play

Equality of two ratios: proportion (1) Student activity Play

Equations for the reactions of acids and bases Simulation Play

Equations for the reactions of acids with bases Whiteboard exercise Play

Equations for the reactions of acids with carbonates Simulation Play

Examples of bases and alkalis Illustration Play

Experiments with indicators Animation Play

Finding square roots (1) Student activity Play

Formulating a chemical equation (1) Student activity Play

Fractional distillation of crude oil (1) Whiteboard exercise Play

Fractional distillation of crude oil (1) Student activity Play

From recurring decimals to fractions (1) Student activity Play

Gay-Lussac's law (1) Whiteboard exercise Play

Gay-Lussac's law (1) Student activity Play