Lesson
Lesson-10.1.1- describe the use of litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions.
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Lesson-9.1.10- practical: investigate reactions between dilute hydrochloric and sulfuric acids and metals (e.g. magnesium, zinc and iron).PreviousLesson-10.1.2- understand how to use the pH scale, from 0???14, can be used to classify solutions as strongly acidic (0???3), weakly acidic (4???6), neutral (7), weakly alkaline (8???10) and strongly alkaline (11???14).Next