Skip to content
One Long Tail
Lessons
Hands-on
Plans
About us
Menu
Lessons
all 428, by branch
Hands-on
lessons you can touch
Plans
what we're building
About us
who we are, contact
All chemistry lessons
Chemistry
Lesson 49 of 76
The ionic–covalent distinction
Why does salt dissolve in water?
300 BC
today
Era 5 of 7:
Inside the atom and the bond
, 1897 – 1960
Check yourself
Loading exercises…