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Tag: nanometer

أسئلة اختيار من متعدد باللغة الإنجليزية للوحدة الأولى Introduction: Matter and Measurement من كتاب CHEMISTRY THE CENTRAL SCIENCE هذه الأسئلة أيضا تغطي : الوحدة الأولى : Chemistry: The Study of Change من كتاب  Chemistry  13th edition by: Raymond Chang and Jason Overby الوحدة الأولى : Chemical Foundations من كتاب Chemistry 9th edition by: Zumdhal (باللون الأحمر

Akram Amir El Ali
February 5, 2021

A powdered, granular, or pelleted form of amorphous car­bon characterized by very large surface area per unit volume because of an enormous number of fine pores. Activated carbon is capable of collecting gases, liquids, or dis­solved substances on the surface of its pores. Adsorption on activated carbon is selective, favoring nonpolar over polar substances. Compared

Akram Amir El Ali
October 11, 2018