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the he i 2122 ev photoelectron spectrum of a molecule shows three sharp peaks corresponding to photoelectron kinetic
in an experiment of specific heat there are mixed 196 g of aluminum at 107degc with 523 g of water at 186 degca
calcium carbide is an intermediate in the manufacture of acetylene calcium carbide was also used for years in mining
a car with a mass of 1060 kg starts from rest and accelerates toa speed of 107 ms in 158 seconds assume that the force
taking into account the existence of any lone pairs of electrons what is the approximate geometry of electron groups
a 2800 kg elevator carries a maximum load of 8351 kg a constant frictional force of 4500 newtons retards the elevators
a spaceship leaves earth traveling at 066c a secondspaceship leaves the first at a speed of 082c with respect to the
draw the structure of methanol ch3oh what is the approximate geometry of the electron groups around the oxygen
a certain star is 195 light years awaya how long would it take a spacecraft traveling 0930c to reach that star from
as measured in earths frame of reference two planets are425times105 km apart a spaceship flies from one planet tothe
antimony pentafluoride sbf5 is a member of a class of molecules called super acids what is the predicted structure of
an unstable particle at rest breaks up into two fragments ofunequal mass the mass of the lighter fragment is300 x 10-28
if you add 625 ml of a 300 m hbr solution to 1875 ml of water to make a new solution the concentration of the new hbr
three equal mass lumps of clay flying through the air hit each other stick and fly off together the originalvelocity of
if a molecule having an ionization energy of 1151 ev produces a photoelectron having a kinetic energy of 86508e-19 j
a box with a membrane down the midddle has 20 n2 moelecules onone side and 50 o2 moelecules on the other sidea once the
charge of uniform density rho 34 microcm3 fills a nonconducting solidsphere of radius 53 cma what is the magnitude of
reaction of sbf5 with hf produces octahedral sbf6- and a free proton which is the reason for the super acid character
the uncertainty in an electrons position is 018 nm what is the minimum uncertainty delta p in its momentum what is
an air bubble originating from a under-water diver has a radius of 94 mm at some depth h when the bubble reaches the
if a second-period diatomic molecule has 5 electrons in its valence shell total of 2s and 2p electrons what is the
a block of mass m on a horizontal frictionless tabletop is pushed against a horizontal spring compressing it a distance
the volume of 1 mol of a monoatomic gas is increased from 4 l to 5 l at constant pressure the initial temperature of
a silver block initially at 599 degree centigrade is submerged into 1000 g of water at 244 degree centigrade in an
a 140 kg steel rod in a building under construction a load of 6520kg during the day the rods temp increases from 25 deg