Identify the solutes and solvents for the following solutions: • salt (NaCl) in water, • air (a solution of 78% N2, 21% O2, and various other gases) • a solution of 30% ethanol and 70% water, • steel (an alloy of 95% iron and 1.5% carbon and 3.5% manganese) • CO2(g) in water. O2, water, NaCl, N2,carbon, co2,iron, ethanol