In lewis structures, horizontal or vertical lines stand for

a. valence electrons
b. chemical bonds
c. reaction direction
d. all of the above
e. none of the above

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

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? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.