5 Questions
What is Dalton's theory about chemical compounds?
Dalton's theory states that each chemical compound has a particular combination of atoms, and the ratios of the numbers of atoms of the elements present are usually small whole numbers.
What does the law of multiple proportions state?
The law of multiple proportions states that the ratios of the masses of elements that form a series of compounds are small whole numbers.
What was the problem for Dalton and other early chemists?
The problem was to discover the quantitative relationship between the number of atoms in a chemical substance and its mass.
Why do chemists not measure the mass of individual atoms or molecules?
Because the masses of individual atoms are so minuscule (on the order of 10−23 g/atom), chemists do not measure the mass of individual atoms or molecules.
What do chemists measure in the laboratory instead of the mass of individual atoms or molecules?
In the laboratory, chemists measure the masses of compounds and elements.
Test your understanding of Avogadro's number and the concept of the mole with this quiz. Explore Dalton's theory and the ratios of atoms in chemical compounds. Perfect for chemistry students learning about stoichiometry and chemical equations.
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