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The thermite process is used to mend railroad tracks together. It combines aluminum powder with ferric oxide. The reaction is: 2Al + Fe(III)2 O3 = 2Fe + Al2O3 If 1 kilogram of iron (III) oxide is used, what is the minimum amount of aluminum power to use to insure that all metallic iron that can be made is made?
a. 256 grams Al
b. 276 grams Al
c. 315 graMs L
d. 338 grams Al
e. 395 grams Al
The rate constant for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction. How long would it take for for the reaction to be 39.00% to complete
Calculate the pH pf a solution prepared by mixing 500 ml of 0.245 M Sodium Acetate with 250 ml 0.1 HCl.
a 322 ml container holds 0.146 g of ne and an unknown amount of ar at 35degc and a total pressure of 635 mmhg.
Draw all the alkenyl side products that could be formed by dehydration of 2-methyl-2-butanol by e1 mechanism. Propose mechanism for formation of the alkene side products
Given the following balanced reaction, if a mixture of 1.50 mol of Al and 3.00 mol of Cl2 are allowed to react, how many moles of AlCl3 are formed, assuming a 75% yield?
If 10 g of C react with 115 g of O2 according to the equation C + O2 → CO2, how many g of O2 will remain unreacted?
Write a balanced equation for the following reaction: nitric acid reacts with calcium hydroxide to produce water and calcium nitrate
Identify the spectator ions that will form when aqueous solutions of sodium carbonate and silver nitrate are mixed. Answer a. Na+, NO3-, and Ag+ b. Na+ and CO32- c. Ag+ and NO3- d. Na+ and NO3- e. Ag+ and CO32-
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
A 25.0 mL aliquot of an FeSO4 solution is titrated against standard 0.0100M K2Cr2O7 solution using diphenylmethane indicator. At the end point 23.oo mL of K2Cr2O7 solution have been consumed. Calculate the normality and the molarity of of the FeSO..
Which of the following is an example of an ionic crystalline solid? Choose one answer. a. calcite, CaCO3 b. fluorite, CaF2 c. iron pyrite, FeS2 d. silver chloride, AgCl e. all of these
Nitrogen oxide is a pollutant in the lower atmosphere that irritates the eyes and lungs and leads to the formation of acid rain. Nitrogen oxide forms naturally in atmosphere according to the endothermic reaction: N2+O2=2NO(g) Kp= 4.1x10^-31 at 298..
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