deathfroggy57 deathfroggy57

18-01-2023
Chemistry

contestada

A 400 g sample is composed of 100 g of cesium (Cs) and 300 g of iodine (1).

What is the percent by mass of Cs in the sample?

A. 50.0%
B. 70.0%
C. 25.0%
D. 75.0%

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