Classifying Compounds

:((

ionic compound type of element

metal + non-metal

molecular compound type of element

non-metal + non-metal

acid type of element

hydrogen ion + anion

base type of element

metal cation + hydroxide ion

ionic compound bonding

ionic transfer of electrons

molecular compound bonding

covalent sharing of electrons

acids bonding

covalent

base bonding

ionic

ionic compound representative unit

formula unit

molecular compound representative unit

molecule

acid representative unit

molecule

base representative unit

formula unit

ionic compound physical state at SATP

solid

molecular compound physical state at SATP

solid, liquid, gas

acid physical state at SATP

aqueous solution

base physical state at SATP

aqueous solution

ionic compound water solubility

usually high

molecular compound water solubility

variable

acid water solubility

high

base water solubility

high

ionic compound melting and boiling temperatures

usually high

molecular compound melting and boiling temperatures

variable

acid melting and boiling temperatures

variable

base melting and boiling temperatures

usually high

ionic compound electrical conductivity

good when molten (heated to its melting point) or in solution

molecular compound electrical conductivity

poor

acid electrical conductivity

variable

base electrical conductivity

variable

ionic compound litmus test

no change

molecular compound litmus test

no change

acid litmus test

blue to red

base litmus test

red to blue

ionic compound pH

7

molecular compound pH

7

acid pH

<7

base pH

>7