4 Fe + 302 2 Fe2O3
What is the molar ratio of O2 to Fe2O3
1 mole 02
1 mole FeO3
4 mole 02
2 mole Fe2O3
O
3 mole 02
2 mole Fe2O3
O
2 mole 02
4 mole Fe2O3

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.