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The metal aluminum is made commercially from al2o3. what weight of Al goes 1.00kg of this metal oxide contain?
Does the octet rule mean that a diatomic molecule has 16 valence electrons? Select from the following:
what is the mass in grams of 30.0 mL of the liquid propylene gylcol, a moisturizing agent for foods, which has a density 1.036 g/mL at 25 degree Celsius.
A 2.74g lead weight, initially at 10.8Celcius, is submerged in 7.80g of water at 51.9Celcius in an insulated container. What is the final temperature of both substances at thermal equilibrium
The aqueous solubility of carbon monoxide at 0.0C and 1.0 atm CO pressure is 0.0354 mg CO per mL of solution. What would be the molarity of CO in water at 0.0C and the observed partial pressure of CO in air(0.00036 atm)
In several sentences (not a long answer, in other words, describe the source of alkenes -- how do we obtain therm. (They are very useful in synthesis of other organic compounds, of many sorts, so we need a source of them. What is it
at constant pressure the temperature of a 8.00 liter sample of gas is decreased from 456 K to 365 K. What is the new volume of the gas sample?
What is the half-life of a compound if 60. percent of a given sample of the compound decomposes in 54 min
A fuel cell works on the same principle as a battery but is continually fed with fuel. In one fuel cell, methanol enters on one side of the unit, and air enters on the other side both circulate past electrodes, and a chemical reaction occurs that ..
What organic product would be formed upon treatment of dl-stilbene dibromide with NaI in acetone? How could you prove that this product if formed?
The reaction 2NO ? N2 + O2, has a rate constant of 3.6 x 10^-2 M^-1 s^-1. When [NO]= 2.8 x 10^-3 M, what is the rate of change in M.s^-1 for N2
Assume the products are all gaseous. Show all your work. What is delta G and is the reaction spontaneous at 298K or nonspontaneous
Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hydroxyquinoline. The extracts were diluted to 25 mL and their fluorescence was measured. What is the concentration of the zinc in the unknown solution Volume of Zn sta..
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