When two hydrogen atoms combine with one oxygen atom, what is the result? A. solution
B. compound
C. mixture
D. none of the above

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

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?

List a abiotic factors and character