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 hydroc... 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 step 2, the beaker should be stirred or shaken to ensure that the powdered calcium hydroxide is thoroughly mixed with the hydrochloric acid, allowing the reaction to proceed fully.
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 A: calcium hydroxide (s), hydrochloric acid (aq).
