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nước kiềm

Nước kiềm là gì?

What is Alkaline Water? Water is a combination of hydrogen and oxygen. That’s why you call it H2O. The pH is the concentration of hydrogen ions contained in the water. Water’s pH level determines how acidic it is and ranges from 0 to 14. A pH of 7 is considered neutral. That “7” number isĐọc tiếp »Nước kiềm là gì?

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