What is happening in the human eye to allow humans to see so many different colors using only Red, Green, and Blue light bulbs?

Calculate the number of moles of ethane in 100 grams

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

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?