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Using quantum mechanics as a basis, explain in detail why there are exactly 14 elements shown in the Lanthanide series of the periodic table.
What is the rate law for step 1 of this reaction? ((Express your answer in standard Mastering Chemistry notation.
How many moles of potassium carbonate will be produced if 476 g of potassium hydrogen carbonate are heated
How many electrons must aluminum lose before it can reach a stable electronic configuration? Use the table of ionization energy to justify your answer.
What volume and mass of steam at 100.°C and 1.00 atm would, during condensation, release the same amount of heat as 100. cm3 of liquid water during freezing.
Explain Why a glacial Acetic acid in a conductance set-up does forms gradually brighter lights that is dim to bright because it is frequently diluted with water?
How many grams of dry NH4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a rm pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}
How much heat is evolved when 3ll.5g of ammonia (NH3) gas condenses to a liquid at its boiling point? ^Hvap= 23.3 kj/mol.
when 15.0g of steam drops in temperture from 275.0C to 250.0C how much heat is released csteam=2.01j/gC
The mass of Earth is 5.974 ô°€ 1024 kg. Assume that Earth is a sphere of diameter 1.28 ô°€ 104 km and calculate the average density of Earth in g/cm3.
Determine the molality of a solution prepared by dissolving 0.500 moles of CaF2 in 11.5 moles H2O.
You are checking the accuracy of a volumetric flask marked 10.00 mL. You measure the volume of water contained in the flask by measuring the mass of the empty flask
Are the following statements about a 1.0 M solution of a strong acid, HA, true or false? [A-] › [H+]: True/False
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