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Review the mass and size of an atom. A typical hydrogen atom, for example, has
a mass of 1.66 x 102 g. Imagine how big a number we would need to describe
Х
the number of atoms in a real-life sample of an element. Could we somehow
measure or handle a dozen or a ream of atoms?

Respuesta :

Answer:

4moles of Fe reacts =2moles of Fe2O3

8moles of Fe reacts=x moles of Fe2O3

cross multiply

4★X=8★2

X=16/4

X=4

Explanation:

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