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In which of the compounds/ions listed is the octet rule impossible to satisy for all atoms in the formula? Choose "Impossible" or "Possible" in regards to satisfying the octet rule (not in regards to if the compound can exist or not).
XeF4
ICl3
SO2
OF3
NO2
NO3-
A mixture of heptane/decane at 1.8 bar, 120?C contains 80% by mol heptane. At what pressure should it be flashed to obtain a stream that is 90% rich in heptane? What are the composition of the liquid and the amounts of the two phases?
If 3.93 g of sodium borohydride contains 2.5 × 10e23 H atoms, how many moles of H are present in 33 cm3 of sodium borohydride (of density 1.074 g/cm3)?
Need to prepare a solution of 0.2 L 0.4 M then determine how many cm^3 of a solution of H2SO4 (sulfuric acid) 80.0%
What is the chlorine flow rate at the reactor pressure and temperature. If the etching rate of silicon is 0.50min, and the wafer is 300 mm in diameter, how many moles of silicon are etched per hour
flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 10.0 mL of 0.220 M NaOH. 1. what volume of NaOH is needed to reach the end point of the titration?
How much PV work is done, and what is the value of ΔE for the reaction of .50 mol of H2 with .25 mol of O2 at atmpospheric pressure if the volume change is -5.6L
Granite rock has a specific heat capacity of 0.80 J·°C-1·g-1. A 15 g rock was warmed by 202 J of energy from sunlight. What was the increase in temperature of the rock (in °C)?
What type of forces must be overcome when solid I2 is dissolved in dissolves in methanol, CH3OH? What type of forces must be disrupted between methanol molecules when I2 is dissolved?
Helium is compressed isothermally and reversibly at 100 celcius from a pressure of 2 to 10 bar
Propane (C3H8) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation for this reaction is C3H8 + 5 O2 ® 4 H2O + 3 CO2. What volume of carbon dioxide is produced when 2.8 L of oxygen are consumed?
Which has the lower concentration of hydrogen ions, vinegar at pH 3 or tomato juice at pH 4? How many times fewer hydrogen ions? Which is more acidic?
What is the net ionic equation for this reaction occurring in water: Potassium sulfate and barium chloride are mixed to form potassium
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