Aperson’s weight changes at a higher elevation because
a. the effect of gravity decreases as the person gets further away from earth
b. the effect of gravity increases as the person gets further away from earth
c. the person loses mass as the elevation increases due to their heavier breathing
d. the person increases mass as the elevation increases due the greater need for oxygen intake

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices