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(1) Describe the Rutherford's model of the atom and compare it with the model proposed by his student Niels Bohr.
(2) How many electrons are in the second energy level of an atom of each element?
a. chlorine
b. phosphorus
c. potassium
A 3.00 L container at 25 C contains 0.464 atm of CO2. When graphite is added to the container, some CO2 is converted to CO and at equilibrium the total pressure is 0.746 atm.
A metal forms the fluoride MF2. Electrolysis of the molten fluoride by a current of 3.86 A for 16.2 minutes deposits 1.07 (backwards "g") of the metal.
What weight of A would be removed from a solution of 21 g of A in 50 mL of water by a single extraction
Propane is often used for gas grills and is typically purchased by filling a propane tank with 20 pounds of propane. What is the enthalpy change when 18 pound of propane is burned?
Arrange the following from the smallest number of representative particles to the largest number of representative particles.
There are three possible arrangements of atoms and nonbonding pairs of electrons for the AB3N2 geometry. assuming that the effects of the relative strengths of different type of electron repulsions given in the background information
Write the reaction mechanism for the conversion of acetylferrocene to diacetylferrocene using acetic anhydride and 85% phosphoric acid.
Ascorbic Acid (Vitamin C) contains C, H, and O. In one combustion analysis, 5.24 g ... analysis, 5.24 g of ascorbic acid yields 7.86 g CO2 and 2.14 g H2O. Calculate the empirical formula and molecular formula of ascorbic acid given ... [PDF] 112
which is commonly known as table sugar, reacts in dilute acid solutions to form two simpler sugars, glucose and fructose, both of which have the formula C6H12O6 At 23C
The activation energy of a certain reaction is 32.3kJ/mol . At 20 degrees C, the rate constant is 0.0130s^-1. At what temperature would this reaction go twice as fast? The equation that is given is ln(K2/K1)=Ea/R((1/T1)-(1/T2)) a. what is R in thi..
Calculate the concentration of NaOH if 25. ml of the solution is needed to neutralize 18.9 ml of .237 M HCl
Calculate the number of moles of ions present in 66.8 g of a solution that is 2.11% Fe(NO3)3 by mass.
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