Which of the following is a homogeneous mixture? a. salt water b. beef stew
c. sand and water
d. soil

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

The fact that the total amount of energy in a system remains constant is a(n)

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?