1. For which properties can a student design an investigation of the electrostatic forces between molecules in a substance? A. melting point and boiling point, but not surface tension and vapor pressure
B. surface tension and vapor pressure, but not melting point and boiling point
C. boiling point, but not melting point, surface tension, or vapor pressure
D. melting point, boiling point, surface tension, and vapor pressure

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph