3. (a) Which of these substances is produced in the stomach to help digestion?
Put a cross (✗) in the box next to your answer - Edexcel - GCSE Chemistry - Question 3 - 2016 - Paper 1
Question 3
3. (a) Which of these substances is produced in the stomach to help digestion?
Put a cross (✗) in the box next to your answer.
A) calcium oxide
B) hydrochloric ac... show full transcript
Worked Solution & Example Answer:3. (a) Which of these substances is produced in the stomach to help digestion?
Put a cross (✗) in the box next to your answer - Edexcel - GCSE Chemistry - Question 3 - 2016 - Paper 1
Step 1
Which of these substances is produced in the stomach to help digestion?
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Answer
The substance produced in the stomach to aid digestion is hydrochloric acid (HCl). This acid creates an acidic environment, which is crucial for enzyme activity during digestion.
Step 2
State the name of the salt formed in this reaction.
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Answer
The salt formed in the reaction between nitric acid and magnesium carbonate is magnesium nitrate (Mg(NO₃)₂).
Step 3
Which of these is the gas produced in this reaction?
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Answer
The gas produced during the reaction is carbon dioxide (CO₂).
