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how does temperature concentration activation energy and molecular orientation affect the reaction rate of a chemical
rubidium-87 decays by beta decay with a half-life of 49 times 1010 yr how many 87rb atoms are in a moon rock sample
the original volume of a gas was 500 ml when the pressure was decreased to 13 pascals the volume increased to 700 ml
calculate the volumenbspof co2nbspgas produced by the combustion of 128 grams of ethanol by excess o2nbspgas at 30oc
show the calculation of the mole fraction and partial pressurenbspof each gas in a mixture which consists of 250 moles
a gas that has a volume of 30 liters a temperature of 460 degrees celsius and an unknown pressure has its volume
a chemist heated a 883 g sample of a metal to 1226 degree celsius then put the sample into a calorimeter with 100 ml of
when setting up their experiment iodine clock reaction a student discovered that the solution in their flask turned
the question is using the equation of the maxwell distribution calculate the fraction of molecules having speeds in
what is the ph of a solution that results from the addition of 200 ml of 01 m naoh with 100 ml of 02 m ch3cooh acetic
excess iron in the body or hemochromatosis can cause serious cell damage one way to treat excess iron build up is to
please draw the orbital configuration of the b5 atom and use it to draw the lewis structure for the b5
please show the calculation of the molecular weight of an unknown gas if the rate of effusion of ammonia gas nh3 is 145
a power company from which you get electricity charges you per unit energy in the case of the power company the unit of
a school bus slows to a stop with an average acceleration of -30 ms2 negative is braking calculate how much time it
setting pco2 to an absurdly high value of 10000 ppm you will see a spike in the co2 absorption band what temperature is
is the direct effect of increasing co2 on the energy output at the top of the atmosphere larger in high latitudes or in
part 1how does the rotation speed vary as you move outward for a person sitting on a playground merry go round how
a starship with a rest mass of 45 times 109 kg is traveling at a speed of 0995 c when its sensors pick up a stationary
consider three capacitors of capacitance 3200 pf 5800 pf and 00100 microf what maximum and minimum capacitance can you
what are the basic or fundamental physical quantities and why are they called
sandra needs to deliver 20 cases of celery to the farmers market directly east across the river which is 32 km wide her
a wave on the ocean surface with wavelength 44 m travels east at a speed of 18 ms relative to the ocean floor if on
a dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency
explain how a change in the resistivity of the wire impacts the current justify your