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a local am radio station broadcasts at an energy ofnbsp584times10-31nbspkjphotoncalculate the frequency at which it is
two weeks ago the ocean froze over near the coast while the air temperature reached -28nbspoc the ocean waternbsponly
a local am radio station broadcasts at an energy ofnbsp404times10-31nbspkjphotoncalculate the frequency at which it is
1 determine the number of electrons protons and neutrons in each isotope of titanium based on the table below determine
calculatenbspdeltahnbspin kjmol for the reaction described by the equation6 nh3g 7 o3gnbsprarrnbsp6 no2g 9
you recovered 595 g of solid alcl3 when 50 g of gaseous cl2 is reacted with excess solid al what is the percent
what safety precautions should be taken give reasons for your answer critically analyse any faults that could occur in
describe two sources of error that could have been present while doing the experiment determining ksp
for the process hno3g hno3l deltahdeg is -3904 kjmol and deltasdeg is -11174 jmol k what is the normal boiling point
what is the percent composition of each element in the formula for potassium phosphate k p and o
describe the main challenges that scientists face in collecting data and making observations on how the road was made
a charge is placed at x 0 meters and another charge of 5 micro-coulombs is placed at x 5 m both on the x axis the
please explain in detail thank you1predict the sign of deltas for each processthe boiling of wateri2g rarr i2scaco3s
certain popular antacids are dissolved in water with much fizzing and are taken in the form of a solution when the
please show all steps and calculations 1 in france grapes are 195 euros per kilogram what is the cost of grapes in
calculate the work w in j when 48 litre of an ideal gas at an initial pressure of 281 atm is expanded isothermally to a
a 100 m3 tank open at the top has a 10 meter diameter the tank is filled with gasoline that ignites how long will the
a 3000 ml salt water sample contains 0308 mol nacl calculate the concentration of nacl in the
fish like other animals need oxygen to survive oxygen gas dissolved in water can be used by fish which remove it from
the properties of a perfect gas are a perfect gas comprises of an large number of indistinguishable particles the
how many atoms of hydrogen are represented in 2nh42so4when the following equation is balanced with the lowest whole
please advise if pb2aq reacts with the following metals zns cus and pbs i also need to know the reduction oxidation and
a sample of solid potassium chlorate is heated strongly for 30 minutes the sample melts and bubbles of gas escape
consider a situation in which 112nbspgnbspofnbspp4nbspare exposed to 112nbspgnbspofnbspo2q1nbspwhat is the maximum