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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
solar energy originates in nuclear reaction where mass energy changes the most in kinetic energy of photon in earth
a 134-ml bubble of hot gases at 217c and 179 atm escapes from an active volcano what is the temperature in c of the gas
an atom of 125sn has a mass of 124907785 amu calculate the mass defect deficit in amuatom use the masses mass of 1h
the velocity selector in the figure is designed to allow charged particles with a speed of 4700 ms to pass through
the acid-dissociation constant for an acid-base indicator hin is 00000438 at 600 nm the molar absorptivities are 2230
two charged particles with different speeds move one at a time through a region of uniform magnetic field the particles
from the following interactions select the lowest and highest energy interactions a a 3 and a 1 charge separated by 3 m
place the following gases in order of increasing average molecular speed at 300 k co sf6 h2s cl2 hbr use the
a gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions it
a mixture of gases contains 135 g of n2 264 g of h2 and 238 g of nh3 if the total pressure of the mixture is 164 atm
a sample of 750 g of so2g originally in a 500-l vessel at 18degc is transferred to a 100-l vessel at 25degc a sample of
an iron wire has a cross-sectional area equal to 350x10-6 m2 carry out the following steps to determine the drift speed
when an air capacitor with a capacitance of 350 nf 1 nf 10-9f is connected to a power supply the energy stored in the
a crane lifts a 2000kg load 40 meters what will be the work done by the load if it takes 8 seconds to do this work what
a solenoid that is 75 cm long produces a magnetic field of 14 t within its core when it carries a current of 76 a how
a daredevil plans to bungee jump from a balloon 720 m above a carnival midway he will use a uniform elastic cord tied
a single circular loop of radius 053 m carries a current of 32 a in a magnetic field of 095 t what is the maximum
two forces on the object are 43 at 80 below the x-axis and 43 at 34 above the -x-axis is there a third force on the
b what is the partial pressure in atm of each component of this mixture if it is held in a 1370-l vessel at 12degc o2
a what are the mole fractions of each component in a mixture of 510 g of o2 744 g of n2 and 126 g of h2 o2 your
one ball of mass 575 g traveling 350 ms to the right collides with another ball of mass 425 g that is initially at rest
two trucks of equal mass collide at a 90 intersection if the momentum of truck a is 950x104 kg kmh east and the