1. 22
2. False, the d subshell can only hold 6 electrons
3. 8 because the element is a noble gas
use filtration because sand isn't soluble in water.
2 or more atoms ☺️happy to help
The answer is A. Two molecules of potassium chloride react with one molecule of lead nitrate to form two molecules of potassium nitrate and one molecule of lead chloride.