Water's heat of fusion is 80. cal/g , its specific heat is 1.0 calg⋅∘C , and its heat of vaporization is 540 cal/g . A canister is filled with 350 g of ice and 100. g of liquid water, both at 0 ∘C . The canister is placed in an oven until all the H2O has boiled off and the canister is empty. How much energy in calories was absorbed?

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.