Chemistry, 12.10.2020 20:01 krissymonae

A fictitious element X is composed of 25.0 percent of the isotope "x, 30.0 percent of the isotope *x, and 45.0 percent of the isotope **x. Estimate the atomic mass of element X.

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A fictitious element X is composed of 25.0 percent of the isotope "x, 30.0 percent of the isotope *...

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