Please help me fast When iron rusts in air, iron(III) oxide is produced. How many moles of oxygen react with 80.9 mol of iron in the
rusting reaction?
4Fe(s) + 302(g) → 2Fe2O3(s)
Select one:
O a. 60.7
O b. 108
O c. 80.9
O d. 121

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow