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Question- Which one of the following is not a redox reaction? Answers: 2H2O2(aq) ? 2H2O(l) + O2(g) N2(g) + 3H2(g) ? 2NH3(g) BaCl2(aq) + K2CrO4(aq) ? BaCrO4(aq) + 2KCl(aq) 2Al(s) + Fe2O3(s) ? Al2O3(s) + 2Fe(s) 2H2O(g) ? 2H2(g) + O2(g)
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ferrocene a substance used as a gasoline additive but which is also being studied because it shows some anticancer
A 325 mL sample of solution contains 25.3 grams of CaCl2. Calculate the molar concentration of Cl- in this solution.
Which of the following is a buffer?
How many types of nonequivalent protons does the following compound contain. (CH3)2CHCl Why
The freezing point of the solution decreases by 0.905 ° C compared to that of the pure solvent. What is the molar mass of the unknown solid. The freezing point depression constant for benzene is 5.46° C/m.
What mass of Na2C2O4 was present initially?
Calculate the Ecell for the reaction below when [Zn2+] = 1.00M, [H+] = 1.00 x 10-6 M and PH2 = 1.00 atm Zn (s) + 2H+ ----> Zn2+ + H2 (g) a.+0.76 V b. + 0.64 V c. + 0.41V d. + 0.053 V e. + 1.12 V
How much heat (in kJ) is evolved in converting 1.00 mol of steam at 160.0 degrees Celcius to ice at -45.0 C? The heat capacity of steam is 2.01 J/g and of ice is 2.09 J/g.
The combination reaction of sodium metal and chlorine has to form sodium chloride is represented by the following balanced equation: 2Na(s) + Cl2(g) ? 2NaCl(s)
The combustion of oxalis acid in a bomb calorimeter yields 2816 J g^-1 at 25 degrees Celsius. Calculate a) Delta (c) U degrees and b) Delta (c) H degrees
the value of the molar absorptivity is 4.84*10^3 M^-1 cm^-1 for K2CrO4 at that wavelength. what is the concentration of the solution
A 4.78-g sample of aluminum completely reacts with oxygen to form 6.67 g of aluminum oxide. Calculate the mass percent composition of aluminum in aluminum oxide
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