Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
The element chromium forms three different oxides (that contain only chromium and oxygen). The percentage of chromium (number of grams of chromium in 100 g oxide) in these compounds is 52.0%, 68.4%, and 76.5%. Do these data conform to the law of multiple proportions? Explain why or why not.
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