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Questions and Answers
The laws of chemical combination summarize the basic principles followed in the interaction of atoms and molecules.
The laws of chemical combination summarize the basic principles followed in the interaction of atoms and molecules.
True (A)
The transformation of matter from one form to another is not a focal point of chemistry.
The transformation of matter from one form to another is not a focal point of chemistry.
False (B)
When two different types of matter combine, it results in the formation of a compound.
When two different types of matter combine, it results in the formation of a compound.
True (A)
The laws of chemical combination are not referred to as the laws of chemical combination.
The laws of chemical combination are not referred to as the laws of chemical combination.
The 18th century studies on heat and combustion were unrelated to the development of the laws of chemical combination.
The 18th century studies on heat and combustion were unrelated to the development of the laws of chemical combination.
The formation of oxide was not observed when metal was heated in air during ancient experiments.
The formation of oxide was not observed when metal was heated in air during ancient experiments.
Antoine Lavoisier was the first to establish the principle of conservation of mass during a chemical reaction.
Antoine Lavoisier was the first to establish the principle of conservation of mass during a chemical reaction.
During Lavoisier's time, the analytical balance was accurate to perhaps 1 part in 1,000.
During Lavoisier's time, the analytical balance was accurate to perhaps 1 part in 1,000.
Antoine Lavoisier heated mercury in a sealed flask with water to observe the formation of a red substance.
Antoine Lavoisier heated mercury in a sealed flask with water to observe the formation of a red substance.
Joseph Proust disagreed with Claude Berthollet's belief that there are no fixed proportions of elements in a compound.
Joseph Proust disagreed with Claude Berthollet's belief that there are no fixed proportions of elements in a compound.
The law of definite proportions states that there are no fixed proportions (by mass) of elements in a compound.
The law of definite proportions states that there are no fixed proportions (by mass) of elements in a compound.
The law of conservation of mass was established after Joseph Proust's publication of the fundamental law of definite proportions.
The law of conservation of mass was established after Joseph Proust's publication of the fundamental law of definite proportions.
