مصادر الكيمياء موقع لتعليم الكيمياء بصورة مبسطة
ATOMS Law of constant composition: This states that “A chemical compound (if pure) always contains the same elements combined together in the same proportion by mass regardless of bow the compound is prepared or from where it is obtained”. Law of conservation of mass: This is defined as “In every chemical reaction, the total mass of the products is the …
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