How could you ensure that all the spectroscopes used the same calibration line and equation? what would you need to be sure was always the same? what could be changed without affecting the calibration?

In which direction will the following reaction go if the standard reduction potentials are 0.80 v for ag/ag+ and –0.44 v for fe/fe2+? ag+ + fe → ag + fe2+ a.)forward b.)the reaction cannot occur. c.) not enough information is given. d.) reverse

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?