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which of the following processes are spontaneous you may select more than one answer a melting of ice at -10degc and 1
what is the final volume of a 5000 ml gas container that increased in temperature from 299 k to 333 k while the
when a carbon dioxide molecule attaches to a molecule of hemoglobin the bond that forms between them immediately starts
ammonia gas decomposes according to the equation if 150 l of nitrogen is formed at stp how many liters of hydrogen will
a sample of hydrogen gas is mixed with oxygen gas the mixture has a total pressure of 820 torr and the oxygen gas has a
which of the following statements is true for the covalent molecule hcl answer chlorine is more electronegative and the
a 625 kg woman climbs a staircase that rises at 48 degrees above the horizontal and is 425 m long her speed is a
calculate the cell potential for the following reaction as written at 75 degc given that zn2 0870 m and ni2 00130 m
a 32000-kg railroad freight car collides with a stationary caboose car they couple together and 31 percent of the
when heated to 350c at 0950 atm ammonium nitrate decomposes to produce nitrogen water and oxygen gases 2nh4no3s --gt
if the volume of a gas container at 320degc changes from 155 l to 755 ml what will the final temperature
in the following reaction 458 l of o2 were formed at 0980 atm and 308 k how many grams of ag2o must have decomposed 2
an electric power station is producing 12 x 103 w of power that is to be sent to a small town located 11 km away each
determine the molar mass of each of the following gases a 082g of a gas that occupies 470ml at 0c and 100 atm stp b
atmospheric pressure arises due to the force exerted by the air above the earth at higher altitudes the mass of the air
a nonconducting solid sphere of radius 116 cm has a uniform volume charge density the magnitude of the electric field
pcl5g --gt pcl3g cl2g lt-- at 250deg 0250 m pcl5 is added to the flask if kp 180 what are the equilibrium
as seen from the window of a space station a 990 kg satellite sailing along at 94 ms collides head-on with a small 2860
in the formation of smog nitrogen and oxygen gas react to form nitrogen dioxide n2 g 2o2g ---gt 2no2 g how many grams
the front and rear sprockets on a bicycle have radii of 950 and 538 cm respectively the angular speed of the front
suppose that an 850 laboratory animal ingested 100 of a substance that contained 245 by mass an alpha emitter with a
the work function w of magnesium metal is 590x10-19 j calculate maximum wavelength of light required to release
hydrogen gas can be produced in the labratory through the reaction of magnesium metal with hydrolic acid mg s 2hcl aq
polonium-218 is an alpha emitter with a half-life of 30 minutes if a sample contains 60 mg of atomic mass 218008965
suppose a 323 v battery is connected to a long cylindrical wire and a current of 244 a flowsa how many electrons will