Ummm ion if dis right but gimme a right answer plz.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

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.