Question

1. which liquid is likely to be a solvent for table salt (nacl)?

a. water
b. paraffin
c. both
d. neither

1. which liquid is likely to have a higher specific heat capacity?

a. water
b. paraffin
c. both
d. neither

1. if mixed together, would water and paraffin form a homogeneous or heterogeneous mixture? why?

Explanation:

Question 7

Table salt (NaCl) is an ionic compound. Water is a polar solvent, and ionic compounds dissolve well in polar solvents due to ion - dipole interactions. Paraffin is a non - polar substance (composed of hydrocarbons), and non - polar solvents do not dissolve ionic compounds. So only water can be a solvent for NaCl.

Water has a very high specific heat capacity (about \(4.18\space J/(g\cdot^{\circ}C)\)) compared to many other substances, including paraffin. This is a well - known property of water, which is related to the strong hydrogen bonding between water molecules.

Water is a polar substance, and paraffin is a non - polar substance. According to the principle "like dissolves like", polar and non - polar substances do not mix uniformly. When water and paraffin are mixed, they will separate into distinct layers, so the mixture is heterogeneous.

Answer:

a. Water

Question 8