Which describes the oxidizing agent in a chemical reaction?
a) the substance that is oxidized because it loses electrons
b) the substance that is reduced because it loses electrons
c) the substance that is oxidized because it gains electrons
d) the substance that is reduced because it gains electrons

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol

Wind and moving water provide energy. chemical mechanical thermal none of the above

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?