Please help , due in a few hours ! Read the problem and write a balance equation. Make sure you justify your answer by writing both the units and the substances, if necessary.

In a blast furnace, iron and carbon monoxide are produced from the reaction of iron(III) oxide (Fe2O3) and carbon. How many grams of iron are formed when 155 g iron (III) oxide reacts with an excess of carbon?

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.