When comparing two sets of data, which one is more precise? Options:
[]The one with the larger standard deviation
[]The one with the mean farther from the known value.
[]The one with the mean closer to the known value
[]The one with the smaller standard deviation

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

What reaction is taking place? 02 + c3h8 = h20 + co2

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh