Iron turns to rust by the reaction 4Fe(s) + 3O2(g) ⟶
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2Fe2O3(s)

Calculate the mass in grams of iron needed to fully react with 9 moles of oxygen gas.
what’s the answer?

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

po-215 i got it right on the quiz

i think its 100.

hope this !