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Chemistry 1CH0 · Edexcel (Pearson) GCSE

Acid-Base Reactions

8 past-paper questions on Acid-Base Reactions · examined 2023–2023.

20238 questions

1CH0/1 · M/J · Q8(a) [1]Sign up to mark my answer →

State what should be done after step 2 to make sure that any reaction is complete.

1CH0/1 · M/J · Q8(b) [2]Sign up to mark my answer →

Complete the word equation for the reaction. calcium hydroxide + hydrochloric acid →

1CH0/1 · M/J · Q8(c) [1]Sign up to mark my answer →

Which row of the table shows the state symbols for powdered calcium hydroxide and dilute hydrochloric acid in the balanced chemical equation? A B C D calcium hydroxide hydrochloric acid aq l l aq s aq s l

1CH0/1 · M/J · Q8(d)(i) [1]Sign up to mark my answer →

Using Figure 12, give the pH of the acid at the start of the experiment.

1CH0/1 · M/J · Q8(d)(ii) [1]Sign up to mark my answer →

Using Figure 12, give the mass of calcium hydroxide required to make a neutral mixture.

1CH0/1 · M/J · Q8(d)(iii) [3]Sign up to mark my answer →

Explain why the pH starts at a low value and ends at a higher value.

1CH0/1 · M/J · Q8(e) [1]Sign up to mark my answer →

State what should be used to measure the pH of the mixture in this experiment.

1CH0/1 · M/J · Q8(f) [1]Sign up to mark my answer →

The calcium hydroxide used is corrosive to the eyes and an irritant to skin. Using this information, state one safety precaution that should be taken during the experiment when using any corrosive substance.

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