15813251 because when you use exponents you have to multiply that number over and over again to the amount that the exponents worth
Visible and Ultraviolet Spectroscopy
Violet: 400 - 420 nm.
Indigo: 420 - 440 nm.
Blue: 440 - 490 nm.
Green: 490 - 570 nm.
Yellow: 570 - 585 nm.
Orange: 585 - 620 nm.
Red: 620 - 780 nm.
Hope this helps
Answer:
A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements.
Explanation:
If only one atom of a specific type is present, no subscript is used. For atoms that have two or more of a specific type of atom present, a subscript is written after the symbol for that atom