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In science, the transformation of matter from one form to the other is the focus of the study in __________.
In science, the transformation of matter from one form to the other is the focus of the study in __________.
chemistry
The laws of chemical combination summarize the basic principles obeyed in the interaction of __________ and molecules.
The laws of chemical combination summarize the basic principles obeyed in the interaction of __________ and molecules.
atoms
The combination of different elements to form a compound is an example of the laws of chemical __________.
The combination of different elements to form a compound is an example of the laws of chemical __________.
combination
The three basic laws of chemical combination are the Law of Conservation of __________, Law of Definite Proportions, and Law of Multiple __________.
The three basic laws of chemical combination are the Law of Conservation of __________, Law of Definite Proportions, and Law of Multiple __________.
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During the 18th century, the studies about heat and combustion started the first steps in formulating the laws of chemical __________.
During the 18th century, the studies about heat and combustion started the first steps in formulating the laws of chemical __________.
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When metal was heated in air, the formation of 'calx', now called oxide, was observed, indicating chemical __________.
When metal was heated in air, the formation of 'calx', now called oxide, was observed, indicating chemical __________.
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In a chemical reaction, the sum of the masses of both the products and the reactants are ______
In a chemical reaction, the sum of the masses of both the products and the reactants are ______
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Antoine Lavoisier used an analytical balance with high accuracy, accurate to perhaps 1 part in ______
Antoine Lavoisier used an analytical balance with high accuracy, accurate to perhaps 1 part in ______
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Mercury was heated in a sealed flask with air and left for several ______
Mercury was heated in a sealed flask with air and left for several ______
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The red substance produced in Lavoisier's experiment was an oxide of ______
The red substance produced in Lavoisier's experiment was an oxide of ______
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Joseph Proust published the fundamental law of definite ______
Joseph Proust published the fundamental law of definite ______
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Proust argued that there are fixed proportions of elements in a compound, regardless of impurities or experimental ______
Proust argued that there are fixed proportions of elements in a compound, regardless of impurities or experimental ______
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