Which process does not result in the formation of both carbon dioxide and water?
Direct Answer
Option A: addition of a dilute acid to a carbonate
The addition of a dilute acid to a carbonate (e.g., CaCO3 + 2HCl → CaCl2 + H2O + CO2) produces carbon dioxide and water. However, this reaction also yields a salt, distinguishing its overall product profile from processes where CO2 and H2O are the exclusive or primary products from the original reactants.
All Options
Detailed Explanation & Context
The addition of a dilute acid to a carbonate (e.g., CaCO3 + 2HCl → CaCl2 + H2O + CO2) produces carbon dioxide and water. However, this reaction also yields a salt, distinguishing its overall product profile from processes where CO2 and H2O are the exclusive or primary products from the original reactants.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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