"While scientists have never determined whether the earthquake in 1990 directly caused the volcanic eruption a year later, the two events are generally considered to be related." What evidence from the passage supports the argument that the earthquake and volcanic eruption in Luzon were probably related?

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

Ab c or d ? i’m not sure what the answer is

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.