CNAs
(common nonmetal anions)
what's in a name
prefix, prefix
name that reaction
N R G
100

H-

hydride

100

compounds made of only two elements

binary compounds

100

meaning 1

mono

100

reaction in which one element takes the place of another element in a compound

single replacement

100

this reaction releases energy

exothermic

200

F-

flouride

200

a covalently bonded group of atoms with a +/- charge and acts as a unit

polyatomic ion

200

meaning 2, 3

di, tri

200

reaction in which two compounds exchange positive ions and form new compounds

double replacement

200

this reaction absorbs energy

endothermic

300

Cl-

chloride
300

how strong a bond is

bond energy

300

meaning 4, 5

tetra, penta

300

reaction in which two or more substances react to form a single compound

synthesis reaction

300

what happens to chemical bonds as a chemical reaction occurs

bonds are broken in reactants and form in products

400

O2-

oxide

400

when a metal forms more than one cation, the name contains this to indicate the charge on the ion

roman numeral

400

meaning 6, 7

hexa, hepta

400

chemical reaction in which a compound breaks down into 2 or more simple substances

decomposition reaction

400
newton's 3rd law

energy is neither created nor destroyed

500

N3-

nitride

500

an amount of a substance that contains 6.02x1023 particles

mole

500

meaning 8, 9, 10

 octa, nona, deca

500

reaction in which a substance reacts rapidly with oxygen, often producing heat and light

combustion reaction
500
the chemical formula for MgCl2

magnesium chloride