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A sprinter starting from rest on a straight and level track is able to achieve a speed of 12 m/s in a time of 4.0 s. What is the sprinter's average acceleration?
If a 45.6-g sample that is 98.5% K2Cr2O7 by mass is allowed to react with 305 ml of HCl with a density of 1.15 g/ml and 30.1 % by mass, how many grams of Cl2 are produced
a compound is 40% C, 6.7% H, and 53.3% O by mass. Assume that we have a 100 g sample of this compound. what are the subscripts in the empirical formula?
the MWP for a tank is 207.0 bar at 20 degrees C. If the tank is filled at 200.0 bar at 20 degrees C, what is the maximum pressure the tank achieves if left in the sun on a boat, if the tank temperature reaches 35.0 degrees C?
Ninhydrin forms a pink-colored compound when it reacts with amino acids left in a fingerprint. The solution is prepared by mixing 6.00 g of ninhydrin with 1000.0 mL of acetone. What is the molarity of ninhydrin, given its chemical formula is C9H6O..
Write the half-reaction for your strongest reducing agent. Write the half-reaction for your strongest oxidizing agent. Note the number of electrons in each half reaction.
A complex ion, [M(H2O)6]2+, is green in solution. Which of the following ligands, when bound to the same metal might cause the solution to be orange
a 0.1967 g sample of pure ascorbic acid is weighed out and dissolved in 50 ml of distilled water in an erlenmeyer
A cylinder is labeled "PENTANE." When the gas inside the cylinder is monochlorinated, five isomers of formula C5H11Cl result. Was the gas pure n-pentane, pure isopentane, pure neopentane
Calculate the temp of an argon sample at 55.4 kpa and 18.6L if it occupies 25.8 L at 75 degrees C And mass of 16g
Provide the name of the major alkene product that results when (2S,3S)-2-bromo-3-methylpentane is treated with sodium methoxide in methanol.
Draw a three dimensional structures of PCl3 and PCl5 , and then explain why one of the molecules has a dipole moment and one doesn't
Label each bond in the following molecules as polar or non polar (make sure you are describing the bond not the molecule). CH4
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