Question

the inner lining of the stomach secrets which acid​

Answer 1

Answer:

Hydrochloric acid.....

Answer 2

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$\tt\pink{⎝⎝\:ʜʏᴅʀᴏᴄʜʟᴏʀɪᴄ\: ᴀᴄɪᴅ}$

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$\purple{☻}$Parietal cells in the mucosa, the inner cell layer of our digestive tract, secrete hydrochloric acid (HCl) into the stomach's lumen, or cavity.❤

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Hope its help uhh :)