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

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)