PLEASE SHOW WORK as I'm checking my answers to see if I got them right 1. find the number of molecules of water that are produced from 1.7 x 1025 molecules of hydrogen gas

2. find the number of molecules of hydrogen gas that combines with 1.954 x 1012 molecules of oxygen gas

3. how many liters of oxygen gas are needed to produce 600 L of carbon dioxide at STP

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?