Select all the correct answers. why is it important for scientists to review and repeat the work of other scientists? a scientific theory must be tested three times before it is proven. the scientific method only applies to repeated experiments. an experiment may have had errors that the scientists didn’t recognize. the results of individual scientists may be influenced by bias. an experiment must be performed twice before the data can be analyzed.

Why does his teacher ask him to balance the equation by including the correct coefficient

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 is the shape of the poem “peer” connected to its meaning?