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Define which of the subsequent concerning second ionization energies is true?
a) That of Al is higher than that of Mg for the reason that Mg wants to lose the second electron, so it is easier to take the second electron away.
b) That of Al is higher than that of Mg for the reason that the electrons are taken from the same energy level, but the Al atom has one more proton.
c) That of Al is lower than that of Mg for the reason that Mg wants to lose the second electron, thus the energy change is greater.
d) That of Al is lower than that of Mg for the reason that the second electron taken from Al is in a p orbital, thus it is easier to take.
e) The second ionization energies are equal for Al and Mg.
The first-order rate constant for the decomposition of N2O5, 2N2O5 --> 4NO2 + O2 at 70 degrees C is 6.82 * 10 ^-3 . Suppose we start with 2.90×10?2 of in a volume of 1.7 L. A)
The volume of a teaspoon is about 5cm, and Ben found this would cover half acre pond (2000 m2). Find the thickness of the oil film.
In the reaction below, 6.15 atm each of H2 and I2 were placed into a 1.00 L flask and allowed to react: H2(g) + I2(g) 2 HI(g) Given that Kc = 45.5, calculate the equilibrium pressure of H2.
which molecules have nonpolar intermolecular forces a). ClO2- b). NaF c). CF4 d). O3 e). NO
If the decay of trihalomethane is first order,and 90% of the trihalomethanes in glass of tap water are gone after 3 hours, what is the decay rate constant
The methane (CH4) gas in a 10.00L container at 305oC and 101 kPa pressure was burned in excess oxygen. What is the mass of carbon dioxide added to the atmosphere from this combustion
Use oxidation states to identify the oxidizing agent and the reducing agent in the following redox reaction. Express both answers as chemical formulas. 1. 2Na(s)+2H2O(l)--->2NaOH(aq)+H2(g)
How much heat is associated with the burning of 3.52 g of methane in the following unbalanced reaction-CH4(g) + O2(g) ?CO2(g) + H2O(g)
what is the ph at the stoichiometric point end point for the titration of 50 ml of 0.20 m methyl amine ch3nh2 aq with
Write a balanced equation for the reaction between O2 and H2. ( I know its H2O but I want to make sure there is nothing left over from O2)
what is the symbol equation for incomplete combustion of ethane and what is the symbol equation for the complete
Calculate the molarity of 500.0 cm3 of solution containing 18.5 g of calcium nitrate Ca(NO3)2
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