余昊老师

The-identification-of-unknown-compounds-X-and-Y.mp4

Types-of-oxides-reactions-with-acids-and-bases.mp4

The-reversible-reaction-between-two-cobalt-species.mp4

The-extraction-of-iron-on-a-match-head.mp4

The-Electrolysis-of-molten-zinc-chloride.mp4

The-identification-of-unknown-compounds-C-and-D.mp4

The-identification-of-unknown-compounds-L-and-M.mp4

The-effect-of-changing-the-concentration-of-hydrochloric-acid-on-the-rate-of-reaction-with-calci.mp4

Qualitative-analysis-Tests-for-anions.mp4

Qualitative-analysis-Tests-for-aqueous-cations-2.mp4

Qualitative-analysis-Tests-for-aqueous-cations-1.mp4

The-distillation-of-a-carbonated-drink.mp4

Qualitative-analysis-Flame-tests-for-metal-ions.mp4

Natural-polymers-The-hydrolysis-of-starch-by-acid-and-enzyme.mp4

Finding-the-empirical-formula-by-displacement.mp4

Chromatography-pigments-in-leaves.mp4

Making esters.mp4

Making-nylon.mp4