9.5 The Laws Governing Formulas and Names

Ca(NO3)2

calcium nitrate

anion

C2H3O2- is a polyatomic ___

lithium bromide

LiBr

definite proportions

The law of ___ states that in samples of any chemical compound

binary

CCl4 contains two elements so it is a ____ compound

molecular

CCl4 does not contain a metal so it is a binary ___ compound

polyatomic ion

CCl4 is not a(n) _____

acid

H3PO4 is an ___

phosphoric acid

H3PO4 is called __

hydrofluoric acid

HF

ST

Names of compounds containing polyatomic anions end in -ide.

diphosphorous pentaoxide

P2O5

4A

Pb is a Group __ metal

Lead (II) acetate/plumbous acetate

Pb is a compound called __

elements

Pb(C2H3O2)2 contains more than two ___

acid

Pb(C2H3O2)2 is not a(n) _____

Lead (IV) acetate/plumbic acetate

Pb(C2H3O2)4

PCl5

Phosphorous pentachloride

ST

Roman numerals are used when naming Group B metal cations

carbon tetrachloride

a binary molecular compound (CCl4) is called ___

AT

compounds containing two elements are called binary compounds

FeO

iron (II) oxide

proportions

law of definite proportions: the masses of the elements are always in the same ___

small whole

law of multiple proportions: the different masses of one element that combine with the same mass of the other element are in the ratio of __ numbers

HNO3

nitric acid

KCl

potassium chloride

NT

prefixes are used when naming binary ionic compounds

multiple proportions

the law of ___ states that whenever the same two elements form more than one compound