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magnesium has an atomic number 12 the ground state electron configuration of the magnesium ion mg2 isa 1s2 2s2 2p6 3s2
the current in an rl circuit is zero at time t 0 and increases to half its final value in 36 sa what is the time
a 110 g sample of ice at -127deg c is mixed with 1146g of water at 800deg c calculate the final temperature of the
a space station in the form of a wheel121m in diameter rotates to provide an artificial gravity of270ms2for persons who
a small thin coil with n2 loops each of area a2 is placed inside a long solenoid near its center the solenoid has n1
a student takes 005 moles of hcl and reacts it with 005 moles of sodium hydroxide in 100 g of water solution in a
a proton is confined within an atomic nucleus of diameter 40m use a one dimensional model to estimate the smallest
cliff and will support the board at each end so that it is horizontal a 52 kg boulder is placed on a 200 m long board
what is the relationship between the ionization energy of an anion with a 1- charge such as f- and the electron
drops of rain fall perpendicular to the roof of a parked car during a rainstorm the drops strike the roof with a speed
a sample of alkaline earth metal carbonate mco3250g was added to 10ml hcl 4m carbon dioxide gas evolved out from the
a man with a mass of 58 kg stands up in a 72-kg canoe of length 40 m floating on water he walks from a point 075 m from
a capacitor is first connected to a 6v battery and then disconnected and connected to a 12v battery how does the charge
what concentration of the lead ion pb2 must be exceeded to precipitate pbf2 from a solution that is 10010-2m in the
a a ball of clay with a mass of 40 g traveling east at 30 ms collides with a 30 g ball of clay traveling north at 15 ms
why does rapid addition of bromobenzene to magnesium favor the formation of the undesirable by-product biphenyl over
1 a saturated solution of leadii chloride was prepared by dissolving pbcl2 solid in water the concentration of pb2 ion
a tennis ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 200 ms
atmospheric boundary layer is of typical height of 1 km is atmospheric flow in this layer laminar or turbulent justify
a student failed to carry out all of the procedural steps when doing this experiment would the following procedural
consider a long narrow bar magnet that is north on one end and south on the other passing lengthwise north first
a conducting rod of mass m is sliding on frictionless conducting rails in a region that has a static uniform magnetic
transesterification occurs when an alcohol in excess reacts with an ester draw the skeletal structure of the ester
how deep does a point in the middle of the floor of a4-m-deep pool appear to a person standing 28 meters horizontally
what wavelength lambda should the astrophysicist look for to detect a transition of an electron from the n 7 to the n3