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Acids, bases & alkalis |
Simple definitions of each – acids and bases opposite, alkalis are soluble bases. Use of adjectives acidic, basic and alkaline. |
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Using Indicators |
The effect of various acids and alkalis on different indicators. |
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Universal Indicator and the pH scale. |
Link between pH and the strength of acids and alkalis. The colour of Universal Indicator at various pH’s. |
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Making an indicator |
Indicators can be made from plants. |
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Neutralisation |
Products of reaction between an acid & alkali. Writing word equations. Predicting name of salt produced. |
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Reactions of Metals with Acids. |
Products of metal + acid reaction, with word equations. Test for hydrogen gas. Brief introduction to the reactivity series of metals. |
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Preparation of Salts from Metal & Acid |
Preparation of Zinc Sulphate – method and word equation. |
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Water of Crystallisation |
Hydrated and anhydrous salts. Effect of heat on hydrated salts. |
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Possible Investigation – Neutralisation |