CHEMISTRY EXAM 3

What is an ionic compound?

A compound made of positive ions(cations) and negative ions(anions)

What is a covalent compound?

A compound formed by the sharing of electrons between nonmetal atoms

What is a cation?

A positively charged ion formed when an atom loses one or more electrons.

What is an anion?

A negatively charged ion formed when an atom gains one or more electrons.

How do you name an ionic compound?

Name the cation first, then the anion. Change the ending of a monatomic to -ide

when do you use roman numerals?

when a mental can have mofre than one possible charge EX: Fe

What does a roman numeral tell you?

The charge of the metal ion

How do you name covalent compounds?

Use greef prefixes to show how many atoms of each element are present

mono

1

di

2

tri

3

tetra

4

penta

5

hexa

6

hepta

7

octa

8

nona

9

deca

10

what is a polyatomic ion?

a group of atoms bonded together that has an overall charge

what is dimensional analysis?

a method of converting units using conversion factors

SI unit for length

meter (m)

SI unit for mass

kilogram (kg)

SI unit for time

second (s)

SI unit for temperature

kelvin (k)