Why is it necessary to chelate the metal ions from solution during the boiling/lysis step at 100°C? What would happen if you did not use a chelating agent such as the InstaGene matrix?

What are the similarities of physical and chemical change ?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

How many atoms are in 2 moles of phosphorus