All wavelengths/colours that are visible make up white light. From violet (between 380 nm and 450 nm) to red (between 400 nm and 700 nm).
I cant answer that if I cant see it
Answer:
holdon a second let me think, nevermind I don't know this one , sorry
It depends on the system if there are more moles of gas on the left and you increase the pressure the yield of a product will increase as the equilibrium moves to the side with the fewest gas molecules
if the right hand side has more moles of gas and you increase the pressure the yield will decrease as the equilibrium shifts to the left hand side where there are more gas moles
hope that helps