Answer:
a homogeneous mixture of two or more substances
Depends on where you live but generally speaking it is either June or July
Answer:
9945.6 J
Explanation:
Amount of heat = Mass * Heat Capacity * Temperature Change
Heat capacity of Water = 4.2 J/gC
Amount of heat = 64 * 4.2 * (69 - 32)
Amount of heat = 64 * 4.2 * 37
Amount of heat = 9945.6 J
You can use a graduated cylinder.
If it goes from a volume of x, then when the volume is doubled it will go to a volume of 2x. If you meant what happens to the pressure, then the pressure halves as volume doubles due to Boyle's law.