Acrystallographer measures the horizontal spacing between molecules in a crystal. the spacing is 15.22 nm . what is the total width of a crystal in millimeters 105 molecules across? write your answer as a decimal.

Why is permeable soil best for plants that need a lot of drainage?

Find the mass in grams of 1.37x1020 particles of h3po4

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.