Combined Science: Trilogy > AQA Question Papers > AQA GCSE COMBINED SCIENCE: TRILOGY Foundation Tier Chemistry Paper 2F (All)
AQA GCSE COMBINED SCIENCE: TRILOGY Foundation Tier Chemistry Paper 2F
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AQA GCSE COMBINED SCIENCE: TRILOGY Foundation Tier Chemistry Paper 2F Fresh water contains low levels of dissolved salts. Water reacts with anhydrous copper sulfate in a reversible reaction. The w ... ord equation for the reaction is: water + anhydrous copper sulfate ⇌ hydrated copper sulfate 0 1 . 1 How does the equation show that the reaction is reversible? [1 mark] 0 1 . 2 Complete the sentences. Choose answers from the box. [2 marks] blue green orange white yellow The colour of anhydrous copper sulfate is . The colour of hydrated copper sulfate is . Do not write outside the box 3 *03* Turn over ► IB/M/Jun21/8464/C/2F Do not write outside the box 0 1 . 3 Figure 1 shows anhydrous copper sulfate in a sealed container. Figure 1 Suggest one reason why anhydrous copper sulfate is kept in a sealed container. [1 mark] Question 1 continues on the next page 4 *04* IB/M/Jun21/8464/C/2F Do not write outside the Sodium chloride dissolves in water to form sodium chloride solution. box 0 1 . 4 Draw one line from each substance to the description of the substance. [Show More]
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