Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated by the same distance, which pair experiences the greatest gravitational attraction?

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!