Chemistry · Laws of Chemical Combination
Which of the following observations cannot be explained by the Law of Definite Proportions?
- 1A sample of water always contains 8 g of oxygen for every 1 g of hydrogen.
- 2In carbon dioxide, the ratio of the mass of oxygen to carbon is always 32:12.
- 3Two different oxides of nitrogen contain nitrogen and oxygen in simple whole-number ratios.✓
- 4All pure samples of a specific chemical compound have the same elemental composition by mass.
Correct answer
Two different oxides of nitrogen contain nitrogen and oxygen in simple whole-number ratios.
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