calculate the weight of fe3o4 in 100.0g fe2o3.

given: molar mass of fe2o3 =159.69 g/mol molar mass of fe3o4 = 231.54 g/mol hint: you need two conversion factors

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

What produces wave a)sound b) heats c)transfer of energy d)vibrations

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.