The four lines observed in the visible emission spectrum of hydrogen tell us that: Group of answer choices The hydrogen molecules they came from have the formula H4. We could observe more lines if we had a stronger prism. There are four electrons in an excited hydrogen atom. Only certain energies are allowed for the electron in a hydrogen atom.

C=59(f−32)the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius.a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.a) i onlyb) ii onlyc) iii onlyd) i and ii only