Después de leer mencione usted la idea importante y haga un resumen A 120 ° C, Kc = 0.090 para la reacción
En una mezcla de equilibrio de los tres gases, las concentraciones de SO2, Cl2 y
SO2 son 0.100 M y 0.075 M, respectivamente. ¿Cuál es la presión parcial de Cl2
en la mezcla de equilibrio?

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.

5.6⋅10−^19  j

do you need the explaination?