www-awu.ale O STATES OF MATTER Solving for a gaseous reactant Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime (calcium oxide), which they produced by roasting limestone (calcium carbonate). 1. Write a balanced chemical equation, including physical state symbols, for the 曲 decomposition of solid calcium carbonate (CACO) into solid calcium oxide and 믐 gaseous carbon dioxide. Ar 2. Suppose 45.0 L of carbon dioxide gas are produced by this reaction, at a temperature of 240.0 °C and pressure of exactly 1 atm. Calculate the mass of calcium carbonate that must have reacted. Round your answer to 3 significant digits.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.