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when heated a 96 g sample of ammonium perchlorate nh4clo4 ignites and burns in the absence of any other material to
a fire helicopter carries a 620 kg bucket of water at the end of a 20 m long cable flying back from a fire at a
the experiment is called geometric isomerism where fumeric acid is created from maleic acid why isnt noritdecolorizing
a ball is released from rest on a no-slip surface as shown after reaching its lowest point the ball begins to rise
give the corresponding atomic orbital designations that is 1s 3p and so on for electrons with the following sets of
calculate the molarity of a solution made by dissolving 125 g of na2cro4 in enough water to form exactly 550 ml of
suppose the g-string of a guitar is 33 m long and has a linear density of 874 mgm the thumb screw attached to the
what mass of ethane gas c2h6 must burn in excess oxygen to produce 200 x 103 kj of heat given the thermochemical
a uniform 18-kg rod that is 058 m long is suspended at rest from the ceiling by two springs one at each end both
when a 600 g sample of a metal at 1000oc is added to 450 g of water at 2200 oc the final temperature of both the water
a 067 kg person stands on a lightweight diving board supported by two pillars one at the end of the board the other 110
456 g of n2o reacts completely with an equimolar amount of no2 to form elemental nitrogen and oxygen how much n2 is
a block-spring system oscillates with an amplitude of 370 cm the spring constant is 250 nm and themass of the block is
elemental analysis of a 352 mg sample of unknown hydrocarbon shows that it contains 301406 mg of carbon if the
what is the mass percent composition of oxygen in a compound having the empirical formula
a weightless spring of force constant 250ncm is 150 cm long whennothing is attached to it it is now used to pull
sucrose c12h22o11 can be mixed with potassium nitrate to form an amateur rocket propellant called rocket candy which
alpha-linolenic acid is one of a large group of fatty acids that are found in fish oil walnuts and canola seeds these
the four tires of an automobile are inflated to a gauge pressure of23 105 pa each tire has an area of0022 m2 in contact
draw the structural formula for 256-trimethylnonane 3-propyl-45-dimethylheptane and 1-ethyl-3-methycyclohexane i dont
two spheres are placed so that their centers are 26 m apart theforce between the two spheres is 275x10-12 n what is the
a friend suggests that everone in the world simultaneously jumping off a high platform could cause an earthquake
what is the final product of acid-catalyzed hydrolysis of starch what tests will be positive with that product write
a neutron mn 9396 mevc2 at rest decaysinto a proton mp 9383 mevc2 an electronme 05 mevc2 and an antineutrinomnu tilde
you are asked to create a stock solution of sodium chloride by dissolving 117g of solid to create 200 ml of solution