How can a flame test identify an unknown element? A. The specific heat capacity of the element is compared with known values.
B. The emission spectrum of the element is compared with known spectra.
C. The ionization energy of the element is compared with known amounts.
D. The element's temperature of combustion is compared with other elements ​

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.

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule