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An angry person is throwing rocks onto a shed with a flat, horizontal roof as shown. If the angry person throws an identical rock with the same initial speed and a slightly larger angle from the horizontal, how will this affect the magnitudes of the horizontal and vertical components of the velocity of the rock as it hits the roof of the shed?
A cubic meter of air was sampled at 1.0 atm and 25 C and was found to contain 29.0 micrograms of S02. How many pub of SO2 is in that air?
What is the equilibrium constant of the formation reaction of ammonia gas at 298.15 K under the conditions that the partial pressures
Determine the reaction equation and molar fuel/air ratio for the combustion of wood cellulose, C6H10O5, with 100.% theoretical air.
What mass of solid sodium fluoride (molar mass = 41.99 g/mol) should be added to 1.0 L of 0.23M hydrofluoric acid to make a buffer with a pH of 2.94? (Ka of HF = 1.36 x 10-3)
What is the role of KNCS in the equation Fe + NCS yields FeNCS? This is a problem for chemistry lab, we're trying to determine which iron compound is which. Also what would the role of HNO3 be in this experiment?
The first ionization potential of potassium is 419 kJ/mol. If UV-?radiation with wavelength ? = 250 nm is used to eject electrons from potassium
the solubility of o2 g in water is 4.43mg o2100 g h2o 20ordmc and 1 atm. what is the molarity m of this saturated
Calculate the Z for the fourth ionization of Ti when it requires 425.6 kJ of energy to ionize 0.185 moles of Ti^3+ to Ti^4+ ( The electron being removed is in the outermost valence orbital of Ti^3+ ground state, therefore n = 3)
Write the lewis dot structures and all possible resonance structures for N2O (structure: NNO) and circle the most stable resonance strucute
What is the % concentration (wt/wt) of the solution? (b) How many liters of a 5.0% (wt/vol) glucose solution would it take to obtain 85g of glucose?
If you used 5.0 g of salicylic acid and excess acetic anhydride in the preceding synthesis of aspirin, what would be the theoretical yield of acetylsalicylic acid in moles and in grams
Sulfur dioxide is released in the combustion of coal. Scrubbers use aqueous slurries of calcium hydroxide to remove the SO2 from flue gases. Write a balanced equation for this reaction.
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