Answer:
The potential energy decreases whereas the kinetic energy increases.
The charge would be -2 because there are 2 more electrons than protons, and electrons have a negative charge.
I’m not good at this but I’m guessing it’ll be the first one!
The following choices are all extensive properties, meaning they do not change with the amount of the substance. Although, 3 of the properties, namely, density, solubility and thermal conductivity are temperature-dependent. Since the problem did not mention of heating, let's assume Kenya just used it directly for her meal. Among the choices, I think shape would change. Once you place it in the meal, you can no longer pinpoint the salt because it's shape has been changed.