In an experiment, powdered calcium hydroxide was added to dilute hydrochloric acid and the pH was measured - Edexcel - GCSE Chemistry - Question 2 - 2023 - Paper 1
Question 2
In an experiment, powdered calcium hydroxide was added to dilute hydrochloric acid and the pH was measured.
The method used was
step 1 measure 200 cm³ dilute hydro... show full transcript
Worked Solution & Example Answer:In an experiment, powdered calcium hydroxide was added to dilute hydrochloric acid and the pH was measured - Edexcel - GCSE Chemistry - Question 2 - 2023 - Paper 1
Step 1
State what should be done after step 2 to make sure that any reaction is complete.
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Answer
After adding the powdered calcium hydroxide, the mixture should be stirred or shaken to ensure that it fully dissolves and reacts with the hydrochloric acid.
Step 2
Complete the word equation for the reaction.
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Answer
calcium hydroxide + hydrochloric acid → calcium chloride + water
Step 3
Which row of the table shows the state symbols for powdered calcium hydroxide and dilute hydrochloric acid in the balanced chemical equation?
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Answer
The correct row is: calcium hydroxide (s) hydrochloric acid (aq)
