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When the external pressure on a balloon is decreased at constant temperature, what happens to the gas inside? A) The collisions become more elastic. B) the gas undergoes no changes. C) The volume increases. D) The molecules increase in rate of movement. E) The volume decreases. I believe it is is C, the volume increases, but I am wanting to make sure.
If a sample of 0.230 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K. Calculate DeltaHo fusion and Delta So fusion for this substance
A reaction has a rate constant of 0.0810 sec-1, how much of the compound (in mol/L) is left after 0.752 min, if there was 0.303 mol/L at the start
A chemist prepares a sample of hydrogen bromide and finds that it occupies 258 mL at 60 degrees celsisus and 476 Torr. What volume would it occupy at 0 degrees celsisus at the same pressure? Answer in units of mL to 5 decimal places.
one day you notice that the outside temperature increase by 16 degrees Fahrenheit between your early morning jog and your lunch at noon. what is the corresponding change in temperature in the Celsius and Kelvin scales?
How many grams of Cu(OH)2 will precipitate when excess KOH solution is added to 63.0 mL of 0.610 M CuSO4 solution.
For the equilibrium PCl5(g) PCl3(g) + Cl2(g), Kc = 2.0 × 101 at 240°C. If pure PCl5 is placed in a 1.00-L container and allowed to come to equilibrium, and the equilibrium concentration of PCl3(g) is 0.13 M, what is the equilibrium concentration o..
Calculate the molar heat (enthalpy) of combustion for butyric acid.
If globally averaged dry and wet deposition rates for SO_2 are 1.0kg/ha/yr and 5.0kg/ha/yr, respectively, then what is the lifetime of SO_2 due to the combined processes of wet and dry deposition? Assume temperature and pressure are 20*C and 1atm
An aqueous solution was found in a bottle labelled "100. ppm Ca2+ standard." Assuming that 1) all calcium ions in the solution came from calcium carbonate (CaCO3 molar mass is 100.0 g/mol)
If a laser operated on the n=5 to n=2 transition of a H atom, what wavelength in nm photon would be emitted? (E2= -82 kJ/mol, E1= -328 kJ/mol)
When a container is filled with 3.00 moles of H2, 2.00 moles of O2, and 1.00 mole of N2, the pressure in the container is 465 kPa. What is the partial pressure of O2
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