HELP! A spectrum tube is emitting light with a wavelength of 625nm.
c=3.00x10 8m/s h=6.63x10 -34 J s 1

Part 1) Convert the wavelength to meters
Part 2) What is the frequency of light?
Part 3) How much energy does this light carry?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

How many atoms are there in 5.70 mol of mg

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate