How many moles of h20 can be formed from 1.64x10^23 molecules of NH3 from the following equation? 4NH3(g) + 5 O2(g) 4NO(g) + 6 H2O (g)

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point