53.1 g of H2O exists as a liquid at 0 °C. How much energy is needed to turn the water into a solid at 0 °C ? The heat of fusion for water = 333.55 J/g. The heat of vaporization for water= 2256 J/g.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?