I NEED HELP WITH NUMBER 2 PLEASE I WILL GIVE EXTRA POINTS!!

2) consider the model we have developed to represent molecules of a gas at room temperature. You may remember that the volume of a gas is roughly 1000 times as great as that of a liquid. With this in mind predict
The volume of a mole of another gas say N2 or CO2 at STP. Justify your prediction.

PLEASE HELP ME OUT :)

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?