The two naturally occurring isotopes of antimony, 121sb (57.21 percent) and 123sb (42.79 percent), have masses of 120.904 and 122.904 amu, respectively. what is the average atomic mass of sb? (a) 121.90 amu (b) 122.05 amu (c) 121.76 amu (d) 121.34 amu (e) 122.18 amu

Select the correct answer from each drop-down menu. daniel and sanya are scientists. daniel is studying whether the increasing frequency of tropical storms is affecting coastal erosion. sanya is investigating whether the discharge from industrial plants has any impact on the ph concentration of freshwater swamps in the surrounding area. which fields of science are daniel’s and sanya’s studies most closely related to? daniel’s field of study is related to science, and sanya’s field of study is related to .

Un cierto gas tiene un volumen de 800ml a 80°c y 600ml a 80°c y 600mmhg de presión. ¿cual será el volumen del gas a condiciones normales? sí el gas es oxígeno, ¿cuál será su peso? y ¿cuántas moléculas están presentes en el sistema?

Why do cells appear different in distilled water than they do in 10% salt water?