1. According to law of _____ of mass, during any ____ or chemical change, the total mass of the products remains equal to the to the total mass of the _______. 2. According to law of _____ proportion a chemical compound always contains same elements combined together in the same proportion by ______. Key words Mass,Conservation,Constant,Reactants,Physical
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Answer:.. According to law of conversation of mass, during any constant or chemical change, the total mass of the products remains equal to the to the total mass of the rectants. 2. According to law of physical proportion a chemical compound always contains same elements combined together in the same proportion by mass
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