A 0.296 g piece of solid magnesium reacts with gaseous oxygen from the atmosphere to form solid magnesiumoxade. In the laboratory a student weighs the mass of the magnesium acide collected from this reaction as 0.224 g The 0.296 g solid magnesium is the Choose one: O A actual yield o B theoretical yield o excess reagent • D. percent yield O E limiting reagen

Magnesium is found naturally in the form of periclase, a white hygroscopic solid mineral known as magnesium oxide or magnesia. Its empirical formula is MgO, and it is made up of a lattice of Mg2+ and O2 ions that are kept together by ionic bonding. Different applications for magnesium oxide exist. As an antacid, some people take it to treat acid indigestion, sour stomach, and heartburn. For quick, short-term bowel emptying, magnesium oxide may also be used as a laxative.

A reactant that is completely consumed at the conclusion of a chemical reaction is known as the limiting reagent. The limiting reactant, also known as the limiting reagent, is the reactant that is used first in a chemical reaction, hence restricting the amount of product that can be produced.

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