Template for acid reaction

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Updated at: 2026-05-26 11:46:26 Created at: 2022-02-18 08:58:52}

Neutralisation (alkali titrated against acid)

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Updated at: 2026-02-08 19:07:52 Created at: 2026-02-08 18:59:20}

Neutralisation (acid titrated against alkali)

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Updated at: 2026-02-08 19:07:33 Created at: 2026-02-08 18:55:35}

Matching: notes and rest

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Updated at: 2026-01-05 15:42:45 Created at: 2026-01-05 12:20:07}

Find the Time signatures

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Updated at: 2026-01-05 15:36:08 Created at: 2026-01-05 15:00:54}

Acid-alkali Neutralization

Drag the H+ particles and OH- particles into the flasks at different pH values during neutralization.
_{By: WS04 (ID: 325) Details
Updated at: 2026-01-05 14:46:18 Created at: 2023-03-17 16:59:32}

Adding Groups I and II metals into water

Learning stoichiometry with the reaction between metals and water
_{By: kayeungpoon (ID: 271) Details
Updated at: 2025-12-07 11:32:44 Created at: 2022-10-05 00:15:30}

Self Ionisation of Water at Different Temperature

Consider the following equilibrium system of self ionisation of water: H2O(𝓁) ⇌ H+(aq) + OH–(aq) The pH of a pure water sample is 7.0 at 25oC. Using the concept of today’s lesson, list out (as much as possible) your expectations about the sample when it is heated to 50oC. You may use ‘drag game’ to assist with your thinking.
_{By: Cyrus (ID: 490) Details
Updated at: 2025-11-19 04:19:34 Created at: 2025-11-15 11:28:11}

Ionisation of water in 25℃ and 65℃

Drag the molecules to illustrate the Ionisation of water in 25℃ and 65℃.
_{By: Bruce (ID: 489) Details
Updated at: 2025-11-15 10:04:45 Created at: 2025-11-15 10:02:11}

五子棋

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Updated at: 2025-10-22 21:05:44 Created at: 2025-10-22 20:50:00}