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(Solved): A sample of an unknown pure substance \( X \) is analyzed and found to contain 5.13 g of Element \( ...



A sample of an unknown pure substance \( X \) is analyzed and found to contain 5.13 g of Element \( E_{1}, 5.87 \mathrm{~g} \) of Element \( E_{2} \), and no other elements. A similar analysis is made of three other substances that also only contain Elements \( E_{1} \) and \( E_{2} \). The results are shown in the table below. Decide whether each of the other substances is also a pure substance. If you don't have enough information to decide, choose can't decide.



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