The color it produces is Bright green.
It has more lines in it compared to hydrogen emission spectrum. It is mainly because the helium atom has more electrons than a hydrogen atom. Therefore, more electrons get excited when we pass a white light beam through a helium sample, and it causes the emission of more spectral lines
Jim, because he ran a greater distance in the same time :)
By the way, this is a maths question
Answer:
The molar mass of Pb(Cr2O7)2 is 639.2 g/mol.