2.1: F-J

ionic bond

electrons are transferred

This forms ions

cation

positive because it lost electrons

anion

Negative because it gained electrons

covalent bond

electrons are shared

nonpolar covalent

electrons are shared equally

polar covalent

electrons shared unequally because one nucleus attracts electrons more strongly

molecule

2 or more atoms chemically combined into an independent unit

Ex. H2 and H2O

compound

2 or more different types of atoms chemically combined

Ex. H2O and NaCl

How does a hydrogen bond form

forms when slightly positive H is attracted to a negatively charged O, N, or F of another molecule

intermolecular forces

weak electrostatic attractions between oppositely charged parts of molecules, or between ions and molecules

There is ___ transfer or sharing of electrons in the hydrogen bond itself

No

Solubility

Ability of one substance to dissolve in another

Ex. Sugar/salt dissolves in water

Dissociation

When an ionic compound dissolves in water, its ions separate

Electrolyte

A substance that forms ions when dissolved in water and can conduct electrical current

Nonelectrolyte

If it dissolves, but does not form charged on