Match each product with the cell or region that secretes or contains it. A. enzymesB. HClC. HCO3-D. mucusE. more than one of these

219 grams of iron (iii) oxide reacts with excess carbon according to the reaction equation shown below. fe2o3 + c → fe + co2 after a scientist performs the chemical reaction they find the actual yield of iron to be 57.4 grams. calculate the percent yield of this chemical reaction.

Identify the electromagnets with poles that are reversed from the electromagnet shown above

When balancing a chemical equation: