The value of the atomic mass of an atom is a. the sum of the mass of the protons in the atom. b. the average mass of all the different ions of the atom. c. the average mass of all the different isomers of the atom. d. the average mass of all the different isotopes of the atom.

Dwayne filled a small balloon with air at 298.5 k. he put the balloon into a bucket of water, and the water level in the bucket increased by 0.54 liter. if dwayne puts the balloon into a bucket of ice water at 273.15 k and waits for the air inside the balloon come to the same temperature, what will the volume of the balloon be? assume the pressure inside the balloon doesn’t change. type the correct answer in the box. express your answer to the correct number of significant figures. the volume of the balloon at 273.15 k is liters.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.