Question

Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level =2 to the level =1.

Answer 1

Answer:

Pb(NO3)2 Δ-> PbO + O2 + NO2 . The number of NO2 molecules in balanced equation are​

Explanation:

Pb(NO3)2 Δ-> PbO + O2 + NO2 . The number of NO2 molecules in balanced equation are​...