How much energy is transferred when 225 g of water is converted from steam at 165°C to ice at –8°C?

Urea, co(nh2)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics and as a fertilizer. what is the maximum mass of urea that can be manufactured from the co2 produced by combustion of 1.00 x 104 grams of co2?

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =