How many atoms of iron are there in 2.76 moles of each of the following? -wolframite, FeWO4
-pyrite, FeS2
-magnetite, Fe3O4
-hematite, Fe2O3

How many miles of water are produced if 5.43 mol pbo2 are consumed

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

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