Question

match each of the following solutions according to the solute/solvent combination. solution solute / solvet air choose choose saltwater h2o(l) / na+(aq) and cl-(aq) co2(2) / h2o(l) h2o(l) / co2(g) brass co2(g) / o2(g) o2(g) / n2(g) zn(s) / cu(s) carbonated water na+(aq) and cl-(aq) / h2o(l)

Explanation:

1. Air is a mixture of gases where nitrogen is the major component (solvent) and oxygen and other gases like carbon - dioxide are solutes. So for air, the solute/solvent is O2(g) / N2(g).
2. Saltwater is a solution where sodium chloride (NaCl) dissociates into sodium ions (Na+(aq)) and chloride ions (Cl-(aq)) in water (H2O(l)). So for saltwater, the solute/solvent is Na+(aq) and Cl-(aq) / H2O(l).
3. Brass is an alloy (solid - solid solution) where zinc (Zn) is dissolved in copper (Cu). So for brass, the solute/solvent is Zn(s) / Cu(s).
4. Carbonated water is a solution where carbon - dioxide gas (CO2(g)) is dissolved in liquid water (H2O(l)). So for carbonated water, the solute/solvent is CO2(g) / H2O(l).

Answer:

air: O2(g) / N2(g)
saltwater: Na+(aq) and Cl-(aq) / H2O(l)
brass: Zn(s) / Cu(s)
carbonated water: CO2(g) / H2O(l)