1.2Which of the following statements is/are true? IOne mole of any element or compound will always contain the same number of elementary particles. IIThe Avogadro constant is the number of atoms only in one mole. IIIThe relative atomic mass of any element, expressed in grams, contains one mole of atoms of that element. A)l and III
B)II and III
C)ll only
D)I only ​

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

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.

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel