What is the main use of dimensional analysis? O increase the accuracy of your calculations
O convert between units
O make science easy
O Count the significant figures

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

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

Calculate the mass of 0.750 mol of the following substance. na3po4.