Convert numbers to and from standard symbol in brackets after a formula. form. Plenary: Thinking about chemical equations Odd One Out: MgO, CuCl2, C4H10O. (Possible answers: MgO is the only one that has a 1:1 ratio of elements; CuCl2 does not contain oxygen; C4H10O does not contain a metal.) Lesson 9He: Equilibria Learning objectives Exemplar teaching activities Differentiation Resources skills Practical skills Developing Starter: Blue bottle experiment Explaining: Resources n/a Demonstrate a Classify chemical reactions as Demonstrate a reversible reaction Heating from 9He reversible reversible or irreversible. using sodium hydroxide solution and Exploring reaction using ammonium what is meant by a dynamic glucose. Prompt students to use the chloride Science. sodium equilibrium. double arrow to show the reaction. Ask students to hydroxide Classify forward and backward say whether they solution and reactions in a reversible reaction. Exploring: Heating copper sulfate the forward glucose. Securing Students investigate how to change reaction is Describe the nature of the energy copper sulfate between its two forms: exothermic or Students changes in the forward and backward hydrated copper sulfate (blue) and endothermic, investigate how reactions. anhydrous copper sulfate (white). giving their to change Exceeding reasons. copper sulfate Explain how the position of equilibrium Explaining: Heating ammonium between its two is affected by [temperature, pressure]. chloride forms: hydrated Demonstrate the heating of copper sulfate ammonium chloride and how this is a (blue) and reversible reaction. anhydrous copper sulfate Plenary: Thinking about equilibria (white). Consider All Possibilities: Very little of a useful product is made in a Demonstrate reversible reaction. (Possible the heating of answers: the equilibrium is towards ammonium the reactants; the reaction conditions chloride and
Convert numbers to and from standard form. symbol in brackets after a formula. Plenary: Thinking about chemical equations Odd One Out: MgO, CuCl2, C4H10O. (Possible answers: MgO is the only one that has a 1:1 ratio of elements; CuCl2 does not contain oxygen; C4H10O does not contain a metal.) Lesson 9He: Equilibria Learning objectives Exemplar teaching activities Differentiation Resources skills Practical skills Developing Classify chemical reactions as reversible or irreversible. what is meant by a dynamic equilibrium. Classify forward and backward reactions in a reversible reaction. Securing Describe the nature of the energy changes in the forward and backward reactions. Exceeding Explain how the position of equilibrium is affected by [temperature, pressure]. Starter: Blue bottle experiment Demonstrate a reversible reaction using sodium hydroxide solution and glucose. Prompt students to use the double arrow to show the reaction. Exploring: Heating copper sulfate Students investigate how to change copper sulfate between its two forms: hydrated copper sulfate (blue) and anhydrous copper sulfate (white). Explaining: Heating ammonium chloride Demonstrate the heating of ammonium chloride and how this is a reversible reaction. Plenary: Thinking about equilibria Consider All Possibilities: Very little of a useful product is made in a reversible reaction. (Possible answers: the equilibrium is towards the reactants; the reaction conditions Explaining: Heating ammonium chloride Ask students to say whether they the forward reaction is exothermic or endothermic, giving their reasons. Resources from 9He Exploring Science. n/a Demonstrate a reversible reaction using sodium hydroxide solution and glucose. Students investigate how to change copper sulfate between its two forms: hydrated copper sulfate (blue) and anhydrous copper sulfate (white). Demonstrate the heating of ammonium chloride and
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