2. given the balanced equation: 2 n2h4(1) + n2o4(1) + 3 n2(g) + 4h2o(g) a. how many moles of dinitrogen tetrahydride are required to produce 57 moles of nitrogen b. how many moles of dinitrogen tetroxide are required to produce 57 moles of nitrogen? c. how many moles of water are produced when 57 moles of nitrogen are made? 3. calculate the mass of aluminum oxide produced when 3.75 moles of aluminum burn in oxygen.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.