Section 1: chemistry of life Flashcards
1
Q
Atom
A
The basic building block of matter
2
Q
Molecule
A
A particle that contains 2 or more atoms
3
Q
Example of molecule
A
water/H2O
4
Q
Pure element
A
A substance that only contains 1 type of atom.
5
Q
Eg of pure element
A
Pure oxygen has the chemical formula O2, it contains nothing but oxygen
6
Q
Compound
A
A substance made from more than 1 type of atom.
7
Q
Eg of compound
A
Table salt (NaCl) contains both sodium and chlorine
8
Q
Organic compounds
A
A substance that can only be made by living things, or derived from their remains.
9
Q
Eg of organic compound
A
Sugar, fats, vitamins, proteins, and DNA. They are often referred to as “carbon compounds” because their molecules always contain carbon atom. Table sugar (C12H22O11)
