Lecture 2 flashcards
1
Q
protons
A
+
2
Q
electrons
A
-
3
Q
neutrons
A
neutral
4
Q
Ion
A
charged
5
Q
Cation
A
positive charge
6
Q
Anion
A
negative charge
7
Q
physical reaction
A
same thing, just looks different (tearing paper)
8
Q
Chemical reaction
A
completely changed (burning wood)
9
Q
covalent bonds
A
strong bonds that share electrons
10
Q
Ionic Bonds
A
weak bonds held by a charge
11
Q
molecules
A
two or more atoms
12
Q
compounds
A
two or more different atoms
13
Q
ATP
A
energy from food and oxygen
14
Q
Catalyst
A
speed up reactions
15
Q
enzymes
A
protein catalysts
