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show the reaction mechanism of the reaction of 33-dimethyl-1-butyne with hcl in acidic medium to form
suppose that at the top of its parabolic trajectory a projectile has a horizontal speed uox the segment at the top of
1 what is the white solid that forms when a-phenylathylamine comes in contact with carbon dioxide write an equation for
a particular heat engine has a useful power output of 440 kw and an efficiency of 300 the engine expels 7200 j of
the space shuttle environmental control system handles excess co2 it is 40 by mass of exhaled air by reacting it with
a point mass m starts from rest and slides down the surface of a frictionless solid sphere of radius r find the angle
a 2000 kg car is rolling at 20 ms you would like to stop the car by firing a 18 kg blob of sticky clay at it how fast
a gaseous fuel mixture stored at 752 mmhg and 298 k contains only methane ch4 and propane c3h8 when 118 l of this fuel
when looping the loop the blue angels stunt pilots of the us navy fly their jet aircraft along a vertical circle of
1 determine the molarity of a sodium hydroxide if 1688 ml of the sodium hydroxide solution is required to react with
an 800-n billboard worker stands on a 40-m scaffold supported byvertical ropes at each end if the scaffold weighs 500 n
an old mining tunnel disappears into a hillside you would like to know how long the tunnel is but its too dangerous to
a 72 skydiver can be modeled as a rectangular box with dimensions 25 cm40cm 18m what is his terminal speed if he falls
1 a solution of ethanol ch3ch2oh density 0795 gml is prepared by placing 300 ml of ethanol in a 20000 ml volumetric
a small block of mass m 18 kg slides without friction along the loop-the-loop track shown the block starts from the
a uniform metal rod with a mass of29kg and a length of09m is attached to a wall by a hinge at its base a horizontal
a give the formula of the conjugate base of the following bronsted-lowry acids explain your reasoninga ch3nh2b hpo42-c
a spring is resting vertically on a table a small box is dropped onto the top of the spring and compresses it suppose
the earth rotates about its axis once in one sidereal day of 23 h 56 min calculate the centripetal acceleration of a
a cylindrical beaker of height 0100 and negligible weight is filled to the brim with a fluid of density 890 when the
find the specific heat of an unknown metal if a 355 gram sample at 996 degrees celsius produced a resulting temperature
four particles each of mass 200 g that form a square with an edge length of d 0800 m if d is reduced to 0300 m what is
the enthalpy change for the reaction between ws and cgraphite is difficult to measure directly because the reaction
in a certain binary-star system each star has the same mass which is 96 times of that of the sun and they revolve about
a toothpaste contains 024 by mass sodium fluoride used to prevent dental caries and 030 by mass triclosan a