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amyl alcohol can burn in oxygen to produce carbon dioxide and water if amyl alcohol is c5h11oh and oxygen a diatomic
in screeching to a halt the car leaves skid marks that are 65m long the coefficient of kinetic friction between the
an impure sample of copper sulfate weighing 552 grams was dissolved in water and allowed to react with excess zinc
a stroboscope is a light that flashes on and off at a constantrage it can be used to illuminate a rotating object and
what mass of solid silver chloride will precipitate from a solution containing 15 grams of calcium chloride if an
calculate the blackbody temperatures k from the peak wavelengths given in a through b and the peakwavelengths m from
the star sirius has a surface temperature of 9750 k and aradius 24 times larger than the sunsa what is the ratio of the
calculate the mass of sodium required to produce 80 grams of sodium hydroxide by direct reaction with water 2nas 2h2ol
a 95-kg fullback is running at 40 ms to the east and isstopped in 075 s by a head-on tackle by a tackler running
a 250 ml sample of unknown hydrochloric acid solution is titrated with 0100 m naoh the equivalence point was reached
a 65kg man is riding on a 22kg cart traveling at a speed of36 ms he jumps off the with zero horizontal speed
4hclaq1mno2s-gt1mncl2aq2h2og1cl2gwhen 122 mole of hcl reacts with excess mno2 how many moles of cl2 form and how many
an experiment youre designing needs a gas with 160 you recall from your physics class that no individual gas has this
calculate the total vapor pressure of an ideal solution made by mixing 0500 mol of ether c4h10o with 0250 mol of
butylated hydroxyanisole bha is used as an antioxidant in margarine and other fats and oils it prevents oxidation and
a mixture of sodium carbonate and sodium hydrogen carbonate is treated with aqueous hydrochloric acid the unbalanced
addition of 515 ml of 2238 m of h2so4 solution density11243 gml to 515 ml of 2238 m bacl2 gives a white precipitatewhat
calculate the energy needed to accelerate a spaceship of mass10000 kg to a speed of 3c for intergalactic
calculate the osmostic pressure of a 00120 m solution of nacl in water at 0 degrees celsius remember that nacl is an
the temperature of a plastic cube is monitored while the cube is pushed26 m across a floor at constant speedby a
starting from rest a 53 kg blockslides 21 m down a rough 300degincline the coefficent of kinetic friction between the
the uncertainty standard deviation in a single buret reading for a 50 ml buret is about - 002 ml two readings initial
suppose 400 g of hydrogen is separatedinto electrons and protons suppose also the protons are placed atthe earths north
the oxygen generated from the decomposition of the potassium chlorate converted some of the iron to ironiii oxide if
a 0470 kg pendulum bob passes through the lowest part of itspath at a speed of 380 msa what is the tension in the