The air contains oxygen. The oxygen allows the coke (carbon) to burn and form carbon dioxide. This reaction gives out heat, i.e., it is exothermic, so it heats up the furnace.

The air contains oxygen. The oxygen allows the iron ore to burn and form carbon dioxide. This reaction gives out heat, i.e., it is exothermic, so it heats up the furnace.

The air contains oxygen. The oxygen allows the limestone to burn and form carbon monoxide. This reaction gives out heat, i.e., it is exothermic, so it heats up the furnace.

iron and carbon dioxide

slag and molten iron

oxygen and carbon

carbon and iron

slag and carbon dioxide

solid

liquid

gas

slag isn't used for anything and must be disposed of when the reactions are complete

roads

airplanes

tools

IRON FORMS then CARBON MONOXIDE FORMS then CARBON DIOXIDE FORMS

CARBON DIOXIDE FORMS then CARBON MONOXIDE FORMS then IRON FORMS

CARBON MONOXIDE FORMS then CARBON DIOXIDE FORMS then IRON FORMS

IRON FORMS then CARBON DIOXIDE FORMS then CARBON MONOXIDE FORMS

CARBON DIOXIDE FORMS then IRON FORMS then CARBON MONOXIDE FORMS

CARBON MONOXIDE FORMS then IRON FORMS then CARBON DIOXIDE FORMS

carbon dioxide gas reacts with coke

limestone and coke react

limestone and carbon dioxide gas react

coke reacts with oxygen

oxidation

reduction

redox

none of those