Question 1 20 pts
The rusting of iron is represented by the equation:
4Fe + 302 ---> 2Fe2O3
If you have a 1.45-mol sample of iron, how many moles of Fe2O3 will there be after the
iron has rusted completely
O 2.17
O 0.483 mol
O 0.725 mol
O 1.45 mol
O 0.967 mol

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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