How do you balance: Al+Fe3O4=Al2O3+Fe ?

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2