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What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8grams of magnesium metal?
Write the overall cell reaction of each. Identify the anode and cathode of each. Arrange the three metals in order of decreasing ease of oxidation(most easily oxidized metal first
The second-order reaction 2 Mn(CO)5 Mn2(CO)10, has a rate constant equal to 3.0 x 10^9 M-1 s-1 at 25C. If the initial concentration of Mn(CO)5 is 2.0 x 10-5 M, how long will it take for 90.% of the reactant to disappear?
The total pressure for a mixture of N2O4 and NO2 is 1.5 atm. If Kp=7.1 (at 25 degrees C) calculate the partial pressure of each gas in the mixture. 2NO2(g) N2O4(g)
The masses of the unknown and the solvent (water) were determinded, and the unknown completely dissolved in the water. Just before the jacketed test tube containing the unknown solution was placed in the ice-salt water bath
An organic compound has a molar mass of 150.5 g/mol and contains 11.30% hydrogen atoms by mass. How many hydrogen atoms are in each molecule of this compound?
According to the data, what is the value of delta H for the reaction.
The value of deltaH for the reaction below is -72kj .how much of heat is released when 3.0 mol of HBr is formed in this reaction . is the reaction exothermic or endothermic
compare the properties of elements and compounds. give two examples of each including one example that exists in the
Calculate the volume the gas will occupy if the pressure is increased to 1.87 while the temperature is held constant.
Select each of the reactions and observe the reactants taking part in the reactions. Suppose you are carrying out each of these reactions starting with five moles of each reactant. Observe that some reactants are in excess whereas some reactants l..
describe the reactant and products of the chemical reaction. Qas the reactant (potato chip) completely consumed? What evidence supports your answer?
Gallium-67 (t1/2 = 78.25 hours) is used in the medical diagnosis of certain kinds of tumors. If you ingest a compound containing 0.015 mg of this isotope, what mass (in milligrams) remains in your body after 13 days? (Assume none is excreted.)
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