Which molecular formula is consistent with the following mass spectrum data: M+⢠at m/z = 78, relative height = 23.5%, (M+1).at m/z= 85, relative height = 0.56% A. C5H10O. B. C5H8O. C. CH24.D. C6H12.E. C4H6O2.

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 )

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.