Based on the Lewis/electron dot representation

of the two atoms, predict the ratio of metal

cationic (+) atom to nonmetal anionic (-) atom in

the compound.

.Ca:

A. 1:1

B. 1:2

C. 2:1

D. 3:1

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

What forms when chemical reactions combine pollution with sunlight?