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the first atomic explosion was detonated in the desert north of alamogordo new mexico on july 16 1945 what fraction of
americium-241 is widely used in smoke detectors the radiation released by this element ionizes particles that are then
calculate the binding energy per nucleon for 21h and 31h the atomic masses are 21h 201410 amu and 31h 301605
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