chapter 9

mono

1

di

2

tri

3

tetra

4

penta

5

hexa

6

hepta

7

octa

8

nona

9

deca

10

anion

negatively charged ion

cation

positively charged ion

what do anions end in binary compounds?

-ide

only two elements in the compound

binary compound

more than 2 elements in the compound

polyatomic compound

two different compounds will always have the same mass ratio

law of multiple proportions

mass will always be in the same whole number ratio for the same compound

law of definite proportions

atom, or group of atoms that has a positive or negative charge

ion

consists of a single atom with a positive or negative charge

monatomic ion

this produces a hydrogen ion when dissolved in water

acid

this produces a hydroxide ion when dissolved in water

base

when two elements form more than one compound, the masses of one element that combine with the same mass of the other elements are in the ratio of small, whole number

law of multiple proportions

in any chemical compound, the masses of the element are always in the same ratio by mass

the law of definite proportions

what type of ions have names ending in -ide?

anions

what is the correct name for the N3-?

nitride ion

how are chemical formulas of binary ionic compounds generally written?

cation on left, anion on right

which of the following formulas represents an ionic compound?
A.CS2
B.N2O4
C.BaI2
D.PCl3

C. BaI2

Which of the following compounds contains the lead (II) ion?
A.PbO
B.PbCl4
C.Pb2O
D.Pb2S

A. PbO

Which polyatomic ion forms a neutral compound when combined with a group 1A monatomic ion in a 1:1 ratio?
A.ammonium
B.carbonate
C.nitrate
D.phosphate

C.nitrate

which of the following formulas represent a molecular compound?
A.ZnO
B.Xe
C.SO2
D.BeF2

C.SO2

what is the formula for phosphoric acid?

H3PO4

what is the correct formula for oxygen octachloride

OCl8

what is the correct formula for Beryllium Chlorate

Be(ClO3)2

what is the formula for hydrobromic acid?

HBr

what is the name for Cr3(PO4)2?

chromium (II) phosphate

when group 3a elements for ions, they....

they gain 3 electrons

which of the following contain lead (II) ion
A.PbO
B.PbCl4
C.Pb2O
D.Pb2S

A.PbO

sulfur hexafluoride is an example of a...

binary compound

what is the correct name for N3F5?

trinitrogen pentafluoride