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Suppose you toss a tennis ball upward.
(a) Does the kinetic energy of the ball increase or decrease as it moves higher?
(b) What happens to the potential energy of the ball as it moves higher?
(c) If the same amount of energy were imparted to a ball the same size as a tennis ball but of twice the mass, how high would it go in comparison to the tennis ball? Explain your answers.
A 0.05M H2S solution contains 0.15M NiCl2 and 0.25M Hg(NO3)2. What pH is required to precipitate the maximum amunt of HgS but none of the NiS
a sample of nitrogen gas occupies a volume of 3.87 liters at 52.8oc and 2.11 atm. what will the new temperature in degc
9.780 grams of gaseous mixture contains ethane ,C2H6 and propane ,C3H8. it needs 1.120mol of oxygen when complete combustion to form CO2 and H2O. Compute the mass percent of C2H6 in the original mixture.
If A certain first-order reaction is 35.5 % complete in 4.90 min at 25 degree Celsius. Define what is the rate constant
What are the mole fractions of each component in a mixture of 5.10 g of O2, 7.44 g of N2, and 1.26 g of H2. O2 N2 H2 (b) What is the partial pressure in atm of each component of this mixture if it is held in a 13.70-L vessel at 12°C O2 atm N2 atm ..
An unknown compound has the formula CxHyOz. You burn 0.220 g of the compound and isolate 0.312 g of CO2 and 0.191 g of H2O.
Gas Nitrous Oxide (N20) is used as an anesthetic and in aerosol cans to produce whipping cream. It is a potent greenhouse gas and decomposes slowly to N2 and O2.
Although the mechanism of the acid catalyzed ring opening polymerization of sigma-decalactone is slightly different than the mechanism of Sn(Oct)2 catalyzed lactide polymerization, both reactions are of the same type. Identify the reaction type an..
What is this hardness concentration expressed in ppm CaCO3. THe hardness of a water sample is known to be 500 ppm CaCO3. IN an analysis of a 50 mL water sample, what volume of 0.0100 M Na2H2Y is needed to reach the endpoint
What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]
Problem- Ammonia is a weak base. Calculate delta G at 25 degrees C for the weak base equilibrium reaction for ammonia in water
Taking into account resonance, which of the following has/have the weakest C-O bond
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