Pumice is a volcanic rock that contains many trapped air bubbles. A 155 g sample of pumice is found to have a volume of 163 mL. What is the density of pumice in g/mL (hurry i'm being timed)

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

What shape would a molecule with two bound groups and two lone pairs have?

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.