Chapter 2 Flashcards
1
Q
the attraction between water molecules is
A
ca
2
Q
What uses ca
A
hydrogen bonds
3
Q
Glycogen is a
A
carbohydrate
4
Q
starch are
A
carbohydrates
5
Q
carbohydrates store
A
energy
6
Q
What reduces the activation energy of chemical reactions?
A
enzymes
7
Q
What increases the speed of chemical reactions?
A
enzymes
8
Q
Enzymes usually are?
A
proteins
9
Q
ability of water to form drop is a example of
A
cohesion
10
Q
What makes up a atom?
A
protons, electrons and neutrons
11
Q
How is an atom called an ion
A
loses or gains electrons
12
Q
How is something neural
A
must have the same number of electrons and neutrons
13
Q
Why do atoms bond?
A
to be stable
14
Q
How is a molecule formed?
A
atoms are held together by covalent bonds
15
Q
Ion bond will only occur
A
have both + and - charges
