Which of the following is polar ? a)N2O b)BeCl2 c)CS2 d)SiO2 e)none

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?

Why can water dissolve many ionic compounds