why is 3 mg s 2 feci3 aq 2 fe s 3 mgci2 aq an oxidation-reduction reaction?

Where do the oxygen molecules in the atmosphere come from? How many moles of helium gas are contained in a 4.0-L flask at STP? Is the following sentence true or false a neuron can have only one axon? What is the direction and magnitude of the net force acting on a rain drop falling down with constant speed? What nerve controls the sphincter pupillae? What chemical is responsible for the acid fast property of mycobacteria? Describe What is meant by natural immunity and how it may be acquired actively or passively? What are the key points to maintain chemicals in a pool? How much gallons is in a ice chest? Does hair on the human arm serve a purpose? What is till deposited at the end of glaciers? Which organelle, found in this plant cell, breaks down sugars for cellular energy? 99 Seville SLS - Any solutions when experiencing a rough idle run when starting cold that goes away after a minute or so and only happens when cold? Are bottle rockets legal? What is the average temperature for the winter in the desert? What is the compound element of cereal drink? What is the main rock in drywall? How does the chloroplast help the cell obtain nutrients? What is an aquatic abiotic factor? A sampaloc is what type of leaf?

why is 3 mg s 2 feci3 aq 2 fe s 3 mgci2 aq an oxidation-reduction reaction?