Naming, Writing Chemical Compounds, and Oxidation States of Elements

Question 1

Two types of Inorganic Compounds

Answer 1

Binary molecular compounds and ionic compounds

Question 2

Chlorine (Cl)

Answer 2

-1

Question 3

Inorganic compound that are:
- composed of ions held together by electrostatic forces
termed ionic bonding. These compounds are neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions.

Answer 3

ionic compounds

Question 4

Inorganic compound that are:
- composed of two elements.
- both anion/nonmetal atoms.

Answer 4

Binary molecular compounds

Question 5

Calcium (Ca)

Answer 5

+2

Question 6

Boron (B)

Answer 6

+3

Question 7

Silicon (Si)

Answer 7

+4

Question 8

Aluminum (Al)

Answer 8

+3

Question 9

Potassium (K)

Answer 9

+1

Question 10

Zinc (Zn)

Answer 10

+2

Question 11

Cadmium (Cd)

Answer 11

+2

Question 12

Sodium (Na)

Answer 12

+1

Question 13

Helium (He)

Answer 13

0

Question 14

Barium (Ba)

Answer 14

+2

Question 15

Bismuth (Bi)

Answer 15

+3

Question 16

Iodine

Answer 16

-1

Question 17

Lithium (Li)

Answer 17

+1

Question 18

rules in naming ternary acids

Answer 18

Hydrogen ion + anion polyatomic ion

If the anion polyatomic ion being given ends with the suffix -ite
(which corresponds to lower no. of oxygen atoms), use the suffix -ous in naming. On the other hand, use suffix -ic for anion polyatomic ion ending with suffix -ate. Then add the word “acid”.

Question 19

Flourine (F)

Answer 19

-1

Question 20

Argon (Ar)

Answer 20

0

Question 21

Involving Transition Metals with 2 Oxidation Numbers/Charges

Answer 21

A. Common Name. Latin origin (of the transition metal) + suffix -ous for lower oxidation number or suffix -ic for higher oxidation number. In this case, mercury is the exemption. Instead, use the chemical name (mercury) drop the -y then add the suffix -ous/-ic depending on the oxidation number being given in the formula.

B. Stock Name. Chemical name (of the transition metal) + Roman Numeral (enclosed in parentheses) corresponding to the oxidation number being used. (No space between the
chemical name and Roman numeral.)

Question 22

Silver (Ag)

Answer 22

+1

Question 23

Carbon (C)

Answer 23

+4

Question 24

Rules in naming binary molecular compound

Answer 24

• the more electropositive atom is written first, followed by the more electronegative atom
• Remove the ending of the second element and add “ide”
• prefixes are used to dictate the number of a given element in a compound: “mono” is one, “di” is two, “tri” is three, “tetra” is four “penta-” is five, and “hexa-” is six, “hepta-” is seven, “octo-” is eight, “nona-” is nine, and “deca” is ten
• if there is only one of the first element, remove the “mono”

Question 25

Sulfur (S)

Answer 25

-2

Question 26

Hydrogen (H)

Answer 26

+1

Question 27

Beryllium (Be)

Answer 27

+2

Question 28

Naming Transition Metals with 3 or more Oxidation Numbers

Answer 28

Common name - The two lower oxidation numbers will only have their common names. Latin origin (of the transition metal) + suffix -ous for lowest oxidation number or suffix -ic for 2nd to the lowest oxidation number (higher than that: stock name) . In this case, mercury is the exemption. Stock Name - Chemical name (of the transition metal) + Roman Numeral (enclosed in parentheses) corresponding to the oxidation number being used. (No space between the chemical name and Roman numeral) Name the nonmetal by revising the suffix. (-ide)

Question 29

Phosphorus (P)

Answer 29

-3 (+3, +5)

Question 30

Oxygen (O)

Answer 30

-2

Question 31

Bromine (Br)

Answer 31

-1

Question 32

Rules in naming binary acids

Answer 32

For simplicity, the acids that we will be concerned with naming are really just a special class of ionic compounds where the cation is always H+. When dissolved in water, acids produce H+ (also called protons) since removing the single electron from a neutral hydrogen atom leaves behind one proton). Hydrogen ion + anion/nonmetal ion Acid Names Hydro + NM + -ic + acid - Binary acids begin with hydrogen and contains a nonmetal which can be identified between the “hydro” and the “ic”. Systematic Name: - just like binary ionic compounds

Question 33

rules in naming Ternary Ionic Compounds

Answer 33

same as naming Binary Compounds. - anion ending with suffix -ide; - anion polyatomic ion -ate/-ite (or as is being given)

Question 34

Nitrogen (N)

Answer 34

-3

Question 35

Magnesium (Mg)

Answer 35

+2

Question 36

Nickel (Ni)

Answer 36

+2

Question 37

Neon (Ne)

Answer 37

0

Question 38

Rules in Naming Binary Ionic Compound Involving Representative Elements or transition metals w/ fixed oxidation state

Answer 38

- Write chemical name of the cation/metal which always appears first - then write the chemical name of anion/nonmetal which ends in "-ide"

Question 39

Selenide (Se)

Answer 39

-2

Question 40

Gallium (Ga)

Answer 40

+3

Question 40

Arsenic (As)

Answer 40

-3

Question 41

Strontium (Sr)

Answer 41

+2

Question 42

Cesium (Cs)

Answer 42

+1