How many moles of hydrogen gas are produced when 0.066 moles of sodium is completely reacted? (balance the equation first) ___Na + ___H2O ---> ___NaOH + ___H2
A. 0.066 moles

B. 0.099 moles

C. 0.033 moles

D. 0.022 moles

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?