C5 - Chemicals If The Natural Environent Flashcards
1
Q
What are the atoms in molecules held together by?
A
Covalent bonds
2
Q
A group or atoms held together by covalent bonds are called…
A
Molecules
3
Q
Do gasses in the air have a high or low boiling and melting point?
A
Very low. This can be explained by really weak forces between their molecules
4
Q
What does Dry air contain?
A
78% nitrogen, 21% oxygen, 1% argon and other gasses such as carbon dioxide.
