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Two ice skaters stand together as illustrated in Figure (a) below. They "push off" and travel directly away from each other, the boy with a velocity ofv=0.67m/s to the left.If the boy weighs712Nand the girl weighs 452 N, what is the girl's velocity after they push off? (Consider the ice to be frictionless. Enter the magnitude only.) in m/s?
In terms of ionic equilibria and solubility product theory, explain dissolution of silver chloride in aqueous ammonia and reprecipitation with nitric acid
How many mL of boiling water would it take to dissolve 23g of caffeine? If the solution was cooled to 25?C, how many grams of caffeine would recrystallize out
Which is the best solvent for recrystallizing acetanilide, water or dichloromethane (CH2Cl2). Explain your answer to receive lifesaver rating.
Important information about Redox titration, How do I calculate the moles of iron (ore sample) and how do I calculate the mass percent of iron in the ore from this problem
for the reaction a --gt b the activation energy is ea 125 kjmol and the heat of reaction h 50 kjmol. what is ea for
10g of CaCO3 are treated with a solution of HCl and 1.12 litre of CO2 are produced at STP . find out the number of moles of HCl in the solution
A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution.
A piece of sodium metal reacts completely with water as follows. 2 Na(s) + 2 H2O(l) 2 NaOH(aq) + H2(g) The hydrogen gas generated is collected over water
Calculate the standard free energy change at 25 degree Celsius with F=96,500 for 3Fe^2+(aq) + 2Cr(s) --> 3Fe(s) + 2Cr^3+(aq)
Explain how the Law of Combining Volumes, combined with the atomic-molecular theory, leads directly to Avogadro's hypothesis that equal volumes of gas at equal temperatures and pressure contain equal numbers of particles.
Questions what is the product of this reaction, the mechanism of reaction, the NMR, TLC, how many bonds does the Ni (11) complex and the streochemistry of the bond displayed.
if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of the gaseous water collected (assuming that none of it condenses)?2H2(g)+ O2(g)--> 2H2O(g
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