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4 (a) (i) Hydrochloric acid is produced in the stomach - Edexcel - GCSE Chemistry - Question 4 - 2013 - Paper 1

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4 (a) (i) Hydrochloric acid is produced in the stomach. The acid kills bacteria. State another reason why this acid is needed in the stomach. (ii) Some people take ... show full transcript

Worked Solution & Example Answer:4 (a) (i) Hydrochloric acid is produced in the stomach - Edexcel - GCSE Chemistry - Question 4 - 2013 - Paper 1

Step 1

State another reason why this acid is needed in the stomach.

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Answer

Hydrochloric acid is needed in the stomach to help break down food and assist in digestion.

Step 2

Why are indigestion remedies taken?

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Answer

The correct option is D: To neutralise excess acid.

Step 3

Write the word equation for this reaction.

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Answer

Dilute sulfuric acid + Zinc oxide → Zinc sulfate + Water.

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