what is the molarity of a solution that contains 25.0 g of vitamin b, hydrochloride (with a molar mass of 337 g/mol) in 390 ml of solution?

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

How many joules of heat are required to raise thetemperature of 750 g of water from 11.0 °c to 19.0 °c?

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?