Chemical Nomenclature

Question 1

Subscript in Formula Represents

Answer 1

number of atoms of each element present in molecule

Question 2

What order are elements written in within a formula?

Answer 2

left to right and if in same column, up to down

H is exception - It follows except in G7A and G6A
H is written first in the exceptions

Question 3

When the prefix ends in an “a” or “o” and the name of the second element begins with a vowel…

Answer 3

then the “a” or “o” is dropped

Question 4

Metal Cations

Answer 4

just the name of the metal plus the word “ion” after

Question 5

Metals with more than one charge

Answer 5

must include the charge in the name as a roman numeral in addition to the Metal Cation rule

Ht^2+ –> mercury(II) ion

Question 6

Nonmetal Anions suffix

Answer 6

-ide

Br^- –> bromide

Question 7

Cation goes before or after the anion?

Answer 7

before

CuO –> copper(II) oxide

Question 8

What is the proper name setup for only hydrogen and one other element

Answer 8

“hydro___ic acid”

all acids have H

Question 9

Proper name for H__O

Answer 9

“____ic acid”

H2SO4 –> sulfuric acid

Question 10

If there’s an extra oxygen in a formula then

Answer 10

prefix becomes “per__ic acid

HClO3 –> perchloric acid

Question 11

If the formula is short one oxygen then

Answer 11

it becomes “hypo___ous”

HNO2 –> nitrous acid

Question 12

When to use “-ate” and “-ite”

Answer 12

one extra O and one less H is -ate

one less O and one less H is -ite

Question 13

If you add H to an oxyanion then

Answer 13

the name is the same with “hydrogen” at the beginning of the name