Chap 4

Question 1

Binary compound is composed of
What are the two kinds

Answer 1

2 different elements
1. Metal and Nonmetal -> Ionic
2. 2 Non Metals -> Covaelant

Question 2

Binary Ionic Compounds always contain
Which goes first?

Answer 2

A positive and negative ion.
Contains a (Cation) and (Anion)
Cation is written first

Question 3

Type 1 vs Type 2 Ionic compounds

Answer 3

Type 1- Only one option for the charge
Type 2- Several options for the charge

Question 4

How to name a type 1 ionic compound
NaCl

Answer 4

Write the cation then the anion.
Cation is named from the element and the anion gets an -ide.
Potassium Chloride

Question 5

Does the subscript matter when going from formula to words?

Answer 5

No ignore subscript

Question 6

Type 2 ionic compounds

Answer 6

Multiple options for a charge.
Use Roman numerals to specify
Changes should cancel
Change the anion to ide

Question 7

Polyatomic Ion

Answer 7

Several atoms bound together that carry a charge. Use table.

Question 8

When going from words to symbols does the charge matter?

Answer 8

YES charges must cancel

Question 9

Naming 2 non metals (covalent)
What two ways can it be done
BF3

Answer 9

Old way- Use prefixes and add ide
Boron trifluoride
New way/stock- Use Roman numerals and add IDE.
Boron (3) Fluoride