Zn + 2MnO2 + H,0 - Zn(OH)2 + Mn,0;
Which of the following option is the Excess Reactant, when 25.0 g of Zn and 30.0 g MnO2 are used?
а. Zn(OH)2

b. MnO2

c. Mn2O3

d. Zn

e. Н20

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

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