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Electronic configurations and valance electrons of Mg.
For Mg element, give the complete electron configuration, sketch the valence electron configuration and give the number of unpaired electrons present.
A cleaning solution is found to have a [OH-] = 3.2 x 10 -12 M. What is the [H 3 O + ] and is the solution acidic or basic?
Assuming that air is 21.0 percent oxygen by volume, what volume of air in liters at 45.0 °C and 793 mmHg would be required to burn 185 g of ethanol (C 2 H 5 OH)?
The volume of a sample of nitrogen is 6.00 liters at 35oC and 740 torr. What volume will it occupy at STP?
A 1.00 L flask is filled with 1.00 g of argon at 25 °C. A sample of ethane vapor is added to the same flask until the total pressure is 1.350 atm. What is the partial pressure of argon in the flask and what is the partia ...
How many seconds will be required to produce 1.0 g of chromium metal by the electrolysis of a Cr(NO3)3 solution using a current of 3.0 A? Could someone please help me with the work for this.
A sealed container holds 1.00 mole of helium and 2.00 moles of nitrogen at 30.0°C. When the total pressure of the mixture is 666 mm Hg, what is the partial pressure of the nitrogen in mm Hg? Provide an answer correct to ...
An ozone, O 3 , sparger system has been proposed for a water-treatment plant. The incoming water in a 80 m3 pond has been stripped of all ozone-demanding substances, and the pH is sufficiently low such that the ozone dec ...
a) Draw all possible stereoisomers of 1,4-dimethylcyclohexane. b) What is the stereo chemical relationship between all of them? c) Rate them according to their stability.
How many grams of silver nitrate are required to produce 44.00 g of aluminum nitrate? 6AgNO 3 + Al 2 (SO 4 ) 3 → 3Ag 2 SO 4 + 2Al(NO 3 ) 3
Analyzed individually, two solutes have retention times of 17 s and 21 s with peak widths at half-maximum (w1/2) of 1.9 s and 2.8 s, respectively. If the two solutes are analyzed together, what would be the resolution on ...
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