How many molecules of H2O are equivalent to 97.2g H2O?

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays