Which has a stronger basicity, sodium carbonate or ammonia water? Please provide an explanation.
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1. The first theory: Sodium carbonate is more powerful than ammonia water, because sodium carbonate can react with ammonium salts (such as ammonium chloride, ammonium sulfate, etc.) to produce ammonia gas or ammonia water (based on the principle of converting a strong base into a weak base), whereas ammonia water does not react with sodium salts (such as sodium chloride, ammonium sulfate)； 2. The first theory: Ammonia solution is strong; it is ammonium hydroxide, a strong base. Ammonia can burn the skin. Sodium carbonate is fine.
Answer these few questions for me first: What is a base? What is the definition of basicity, and what are the criteria used to determine it? Find out how inorganic chemistry defines it, and then reply.