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Dalton's model

Chemistry • Models of the Atom • Transitional Reasoning • 1 questions

Dalton's model Transitional Reasoning Download PDF

Chemistry · Atomic Structure · Chemistry · Models of the Atom

1 Chemistry practice questions on Dalton's model. Questions that build towards applied reasoning.

Questions

  1. 1.

    A chemist analyzes two distinct pure compounds formed entirely from sulfur and oxygen. Quantitative analysis shows that a sample of Compound I contains 32 g of sulfur combined with 32 g of oxygen, whereas a sample of Compound II contains 32 g of sulfur combined with 48 g of oxygen. Which statement correctly interprets this experimental evidence through the framework of Dalton's atomic theory?

    • A) The different masses of oxygen demonstrate that sulfur atoms altered their individual mass when forming Compound II.
    • B) Compound II formed because oxygen atoms divided into smaller subatomic fragments during the combination process.
    • C) The simple whole-number ratio of oxygen masses combining with a fixed mass of sulfur confirms that chemical combination occurs via discrete, intact atomic units.
    • D) The differing elemental mass proportions prove that the Law of Definite Proportions does not apply to substances containing the same constituent elements.