Pls help me

Calculate the mass of 3.57 mol of magnesium nitrate, Mg(NO3)2.

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

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.