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There are three possible arrangements of atoms and nonbonding pairs of electrons for the AB3N2 geometry. assuming that the effects of the relative strengths of different type of electron repulsions given in the background information are considerably more important for bond angle of 90 degree or less than for those of 120 degree or grater, explain the t- shape configuration is considered to be most accurate
6.00 mL of this solution was mixed with 77.00 mL of a solution of potassium nitrate and 68.70 mL of a solution of ammonium chloride. What is the molarity of Nacl in the final solution?
Draw the Lewis structures of the following compounds and find out number of electron groups, number of lone-pairs, geometry of electron
a Balanced reaction equation must have the same number of atoms of each element on both sides of the equation. to verify that the equation is balanced, count the otoms of each element on both sides of the reaction
How many liters of oxygen gas, at standard temperature and pressure, will react with 25.0 grams of magnesium metal? 2 Mg + O2 yields 2 MgO
Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KClO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate?
At a distance of 41 ft an ionizing radiation source delivers 4.5 rem of radiation. How close could you get to the source and still have no biological effects?
How many grams of Helium does a 25.0 Liter balloon contain at 102.0 kPa and 24 degrees Celsius?
a tank contains 150.0 g of co2 and 24.0 g o2 at a total pressure of 4.25 atm and a tempature of 25.0*C. Calculate the partial pressure of O2.
calculate the mass of magnesium that is required to produce 35.8ml of hydrogen gas at 28°c and a barometric pressure of 745 mmHg when collected over water?
Sulfur dioxide is released in the combustion of coal. Scrubbers use aqueous slurries of calcium hydroxide to remove the SO2 from flue gases
Organic Reactions - Cyclopentadiene, Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures?
Suppose 5.0 mol of antimony (III)fluoride is added to 10.0 mol of carbon tetrachloride. How many grams CCl2F2 and SbCl3 are there if the reaction is 100% complete?
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