When a photon of red light hits metal X, an electron is ejected. Will an electron be ejected if a photon of yellow light hits metal X? A. Yes
B. No
C. Can't tell

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

How many atoms are there in 5.70 mol of mg