"A" compound is always consists of the same elements combined in the samefixed ratio". The statement is
Correct answer: C. a law
- A. a hypothesis
- B. a fact
- C. a law
- D. an observation
Explanation
This statement reflects the Law of Definite Proportions, which states that a compound always contains the same elements in the same fixed ratio by mass. The law is a fundamental concept in chemistry that describes the consistent composition of compounds.
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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