A student investigated the reaction between potassium iodide and lead nitrate - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2020 - Paper 1
Question 2
A student investigated the reaction between potassium iodide and lead nitrate.
(i) Solutions of potassium iodide and lead nitrate were mixed together.
Lead iodide a... show full transcript
Worked Solution & Example Answer:A student investigated the reaction between potassium iodide and lead nitrate - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2020 - Paper 1
Step 1
Complete the word equation.
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Answer
Potassium iodide + Lead nitrate → Lead iodide + Potassium nitrate
Step 2
State how the results in Figure 2 show that mass is conserved in this reaction.
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Answer
The total mass of the reactants (21.7 g) is equal to the total mass of the products (21.7 g). This indicates that mass is conserved during the reaction, as there is no loss or gain of mass.
