A www-awu.aleks.com/a O STATES OF MATTER Solving for a gaseous reactant 0/5 The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by doing a famous experiment in 1775. In this experiment Lavoisier found that mercury(II) oxide, when heated, decomposed into liquid mercury and an invisible and previously unknown substance: oxygen gas. 1. Write a balanced chemical equation, including physical state symbols, for the 圖 decomposition of solid mercury(II) oxide (HgO) into liquid mercury and gaseous dioxygen. A 2. Suppose 20.0 mL of dioxygen gas are produced by this reaction, at a temperature of 60.0 °C and pressure of exactly 1 atm. Calculate the mass of mercury(II) oxide that must have reacted. Round your answer to 3 significant digits. | Privacy Center Accessibility Terms of Use 7022 McGraw Hill LLC. Al Rights Reserved. Aa

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