Which statement regarding this equation is TRUE? 4Fe (s) + 3O2 (g) —> 2Fe2O3 (s)

There are 2 reactants.
There are 2 reactants.

There are 5 atoms of oxygen on the reactant side.
There are 5 atoms of oxygen on the reactant side.

The coefficient on O2 is 8.
The coefficient on O, 2, is 8.

Iron (III) oxide is a gas.

What is lincoln's purpose in writing this speech? question 1 options: to stress the difficulties of war to honor those who died in the war to call for an end to the war to call the country to join a new war

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?