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a tank contains helium gas at 576 mmhg nitrogen gas at 157 atm and neon at 730 torr what is the total pressure in
a piece of wood found in an archaeological dig has carbon-14 activity of 5nbspcounts per minute cpm new wood has a cpm
in the anaerobic fermentation of grain the yeast saccharomyces cerevisiae digests glucose from plants to form the
a pressure vessel contains co2 pco2 378 atm and o2 po2 6 atm gases at a total pressure of 978 atm what is the
a dryer works continuously to dry grain it performance is constant at 423 kg of water removed per hour at the entrance
we circulates the air of a building in a humidifier to increase moisture the air enters the humidifier at 25 degrees
a dolphin swims at an average pace of 15 miles per hour how long will it take for it to travel 3500
some commercial drain cleaners contain two components sodium hydroxide and aluminum powder when the mixture is poured
the thermal decomposition of ethylene occurs in many industrial contexts during ethylene transit in pipelines formation
what hybridization is needed to describe the square planar molecular geometry of krf4 explain how the hybridization is
if you did not know that the first liquid tested was water would you have been able to identify it based on its melting
can someone explain how to solve1 determine the relative error for the following quantity 547plusmn005 047plusmn003 -
a student increases the temperature of a 556 cm cubed balloon from 278 k to 232 k assuming constant pressure what
aqueous hydrogen fluoride hydrofluoric acid is used to etch glass and to analyze minerals for their siliconnbspcontent
a gas at constant temperature occupies a volume of 240 l and exerts a pressure of 085 atm what volume will the gas
what volume of 008892m hno3 is required to react completely with 02352 g of potassium hydrogen phosphate2hno3aq
aa serving of chicken a la king has 235 kcal if the serving has 11 g of carbohydrates and 12 g of fat about how many
what is the heat of fusion of ethanol in calories per molenbspthe heat of fusion for ethanol is 452 calgnbspthe molar
a student uses a calorimeter to determine the enthalpy of dissolving for ammonium nitratenbspthe student fills a
what type of hydrocarbon is 2-octene and what about the structure allows 2-octene to be classified as this type of
peanut butter has 1520 calories per tablespoon if the oxidation of glucose yields 670 kcal of energy per mole of
three reactions are provided below write a complete sentence that describes the specific chemical change that
how are you able to determine which atom is more electronegative when looking at the periodic table of elements for
amonium nitrate a common fertilizer is used as an explosive in fireworks and by terrorists it was the material used in