1. Carbon dioxide in water is an example of which solute-solvent combination?
a. gas-liquid c. cannot be determined
b. liquid-gas d. liquid-liquid
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To determine the solute-solvent combination, we need to understand what a solute and a solvent are. In a solution, the solute is the substance that is being dissolved, and the solvent is the substance in which the solute is dissolved.
In this case, the solute is carbon dioxide (CO2) and the solvent is water (H2O). Carbon dioxide dissolves in water to form carbonic acid (H2CO3).
So, the solute-solvent combination in this example is gas-liquid, as carbon dioxide (CO2) is a gas and water (H2O) is a liquid.
So, the correct answer is (a) gas-liquid.