Aluminum reacts with oxygen to produce aluminum oxide which can be used as an adsorbent, desiccant or catalyst for organic reactions. a mixture of 82.49 g of aluminum and 117.65 g of oxygen is allowed to react. identify the limiting reactant and determine the mass of the excess reactant present in the vessel when the reaction is complete. a. oxygen is the limiting reactant; 19.81 g of aluminum remain. b. oxygen is the limiting reactant; 35.16 g of aluminum remain. c. aluminum is the limiting reactant; 16.70 g of oxygen remain. d. aluminum is the limiting reactant; 35.16 g of oxygen remain. e. aluminum is the limiting reactant; 44.24 g of oxygen remain.

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scenario: hawaii and south carolina are trading partners. hawaii has an absolute advantage in the production of both coffee and tea. the opportunity cost of producing 1 pound of tea in hawaii is 2 pounds of coffee, and the opportunity cost of producing 1 pound of tea in south carolina is 1/3 pound of coffee. which of the following statements is true? a. south carolina should specialize in the production of both tea and coffee. b. hawaii should specialize in the production of tea, whereas south carolina should specialize in the production of coffee. c. hawaii should specialize in the production of coffee, whereas south carolina should specialize in the production of tea. d. hawaii should specialize in the production of both tea and coffee.

Draw, label and explain the circular flow model (cfm). include the following: firms, households, product market, and factor (or resource) market.who owns the productive resources? what are those resources? what payment does each type of resource earn? explain the two markets in the cfm and explain the roles that firms and household each play in the cfm.