問題一覧
1
What are energy relationships between electrons of reacting atoms called?
chemical bonds
2
What subatomic particle is invoked in all chemical reactions
electrons
3
Chemical bonds are actual physical structures
false
4
Electrons can occupy areas around nucleus called
electron shells
5
The number of protons does not equal the number of electrons.
ionic bonds
6
Atoms that gain one or more electrons become an
anion
7
Atoms that lose one or more electrons become a
cation
8
Positively charged
cation
9
Negatively charged
anion
10
Attraction of opposite charges results in what type of bond?
ionic
11
The most ionic compounds are
salts
12
What type of bond is formed by sharing two or more valence shell electrons between two atoms
covalent
13
Single bond
2 electrons
14
Double bond
4 electrons
15
Triple bond
6 electrons
16
Attractive force between électropositive hydrogen of one molecule and an electronegative atom of another molecule is called
hydrogen bonds
17
What is C6H12O6?
glucose
18
What reaction involves Both synthesis and decomposition?
exchange
19
The speed of a chemical reaction can be affected by:
temperature, concentration of reactants, and particle size
20
What increases the rate of reaction without being chemically changed or becoming a part of the product
catalyst
21
______ are biological catalysts
enzymes