9. Consists of the Sun and everything that orbits the Sun 10. A celestial body that orbits a star
11. The force that pulls all objects with mass toward one another
12. Located between the orbits of Mars and Jupiter
13. The measure of gravity exerted on an object
14. The path followed by an object revolving around another object
15. The amount of matter in an object
16. The star around which the Earth orbits

coco channel

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

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.