1) If 2.0 g of water at 0.00°C is to be vaporized, how much heat must be added to it? The specific heat of water is 1.0 cal/g • K, its heat of fusion is 80 cal/g, and its heat of vaporization is .

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?