Edexcel Core Practical 9-1 GCSE C7.1 Rate of reaction measure colour change of sodium thiosulfate

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Pearson Edexcel GCSE 9-1 for Combined Science
Pearson Edexcel GCSE 9-1 for Separate Science Chemistry
Specification content topic 7 point 7.1 Core Practical: Investigate the effects of changing the conditions of a reaction on the rates of chemical reactions by:
a measuring the production of a gas (in the reaction between
hydrochloric acid and marble chips)
b observing a colour change (in the reaction between sodium
thiosulfate and hydrochloric acid)
Includes instructions for the practical and shows how to use appropriate equipment.
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  1. Science School
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