Hydrochloric acid is present in the stomach to help digestion - Edexcel - GCSE Chemistry - Question 3 - 2015 - Paper 1
Question 3
Hydrochloric acid is present in the stomach to help digestion.
(a) State another effect hydrochloric acid has in the stomach.
(b) Complete the sentence by putting ... show full transcript
Worked Solution & Example Answer:Hydrochloric acid is present in the stomach to help digestion - Edexcel - GCSE Chemistry - Question 3 - 2015 - Paper 1
Step 1
State another effect hydrochloric acid has in the stomach.
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Answer
One additional effect of hydrochloric acid in the stomach is to kill bacteria. This helps in maintaining a sterile environment and prevents infections that could arise from ingested food.
Step 2
Complete the sentence by putting a cross (☒) in the box next to your answer.
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Answer
The correct answer is B: neutralise the excess acid. Indigestion tablets help neutralise excess stomach acid to alleviate discomfort.
Step 3
Which of the following substances is formed when magnesium hydroxide reacts with hydrochloric acid in the stomach?
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Answer
The correct answer is A: magnesium chloride. When magnesium hydroxide reacts with hydrochloric acid, it produces magnesium chloride and water.
