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Date: 30-10-2020
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Date: 21-7-2020
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Many combinations of elements can react to form more than one compound. In such cases, this law states that the weights of one element that combine with a fixed weight of another of these elements are integer multiples of one another. It's easy to say this, but please make sure that you understand how it works. Nitrogen forms a very large number of oxides, five of which are shown here.
Figure 1.1
: Law of Multiple Proportions applied to nitrogen oxides (NOx) compounds. Image used with permission (CC-BY; Stephen Lower)
The law of multiple proportions states that if two elements form more than one compound between them, the masses of one element combined with a fixed mass of the second element form in ratios of small integers.
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