Ahot lump of 36.2 g of iron at an initial temperature of 62.0 °c is placed in 50.0 ml of h2o initially at 25.0 °c and allowed to reach thermal equilibrium. what is the final temperature of the iron and water given that the specific heat of iron is 0.449 j/(g·°c)? assume no heat is lost to surroundings.

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false