cho 98g dd H2SO4 20% vào 400g dd CaCl2 5,2% tính khối lượng kết tủa tạo thành tính nồng độ phần trăm của các chất trong đd sau khi tách bỏ kết tủa
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Answers on questions: Chemistry
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Ответ:
Ответ:
When water (e.g. rainwater) mixes with carbon dioxide gas in the air or in air pockets in soil, a weak acid solution, called carbonic acid, is produced. When carbonic acid flows through the cracks of some rocks, it chemically reacts with the rock causing some of it to dissolve.
Explanation:
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