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what are the abbreviated electron configurations for Ti2- , Ge3+ , W , Au, Pd 1- , Mo2-,Cr 1+
What is the enthalpy change when a 4.0 gram sample of aluminum burns in excess of oxygen to form aluminum oxide?
translate the following word equations into balanced chemical equations and explain how the equations represent what
what are the techniques used to isolate pure chemical substances from their natural sources? explain please.
Select the statements that correctly describe the regio- and stereochemical outcome of the hydroboration-oxidation reaction: (A) syn-addition of H-B species; (B) anti-addition of H-B species
1. Average speeds of gas particles (give answers in m/s) a. Calculate the average speed of Hg vapor atoms at 500oC b. Calculate the root-mean-square speed
The heat of fusion is 4.6 kJ/mol and the heat of vaporization is 46.0 kJ/mol. Finally, the specific heats of the solid, liquid and gas are, respectively 2.1, 3.2 and 1.8 J/g oC.
Starting Materials: Sebacoyl chloride, 1,6-Hexanediamine, Methyl chloroform, Sodium Carbonate monohydrate, Why is it necessary to have two immiscible solvents to make the nylon string?
if the pressure of chloroform vapor in a flask is 154 mm hg at 25.0degc and the density of the vapor is 1.25 gl what is
small samples of oxygen gas needed in the laboratory can be generated by any number of simple chemical reactions such
A student recrystillized 500 mg of an impure sample of naphthalene using methanol-water solvent pair and obtained 150 mg dried crystillized product
The % mass composition of 0.1458g sample of a compound was measured by burning the compound in an excess of oxygen.
A sample of oxygen is collected by water displacement at a temperature of 35C when the barometric pressure is 752 mm Hg. What is the partial pressure of the dry gas?
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