- Why didn t Balmer see the line for the n=6 to n=1 transition appear in the spectrum for hydrogen?

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Find the heat in calories is required to increase the temp of 54g water from 0 degrees C. The specific heat capacity of water is 1cal/g C? If between proton and neutron strong nuclear force is acting than which force will act between electron and neutron? If 2.25 l of methane gas burns, how many moles of oxygen will be needed for complete combustion? How many hydrogen atoms in 2.25 g of methane? How you use quadratic formula to solve the equation 3t^2 - 5t - 9 = 0 to one dec place and find discriminant of the expression4x^2 + 4x + 1?

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