Types of Bonds
List the 3 types of bonds from strongest to weakest
Covalent
Ionic
Hydrogen
Does steam have more or less thermal energy than liquid water?
More
if Carbon has an Atomic Number of 6, how many protons does it have?
6
The pH scale is numbered _ through _.
0 - 14
What do we call a bond characterized by unequal sharing of electrons?
Polar covalent
Water "sticking" to itself is called _.
Cohesion
What is the difference between Carbon 12 and Carbon 14?
Carbon 12 has 6 neutrons while Carbon 14 has 8 neutrons
7
Another word for an ionic bond is _
Salt
Why does ice float?
The low thermal energy of the water molecules allows the H bonds to stabilize causing the water molecules to spread out and become less dense than liquid water.
What is the importance of the valence shell?
The valence shell determines how an atom will interact with other atoms.
A solution that is acidic has more _ than _.
H+, OH-
A _ bond can be found within a water molecule while a _ bond can be found between water molecules.
Polar covalent, hydrogen
Water is considered to be the _ of life.
Solvent
What do we call an atom of carbon after we add 1 more proton?
Nitrogen
How much more acidic is battery acid (pH of 1) than rain water (pH of 5)?
10000
DNA is held together by what 2 types of bonds and where can you find them?
Polar covalent bond in the sugar-phosphate backbone and H bonds between nitrogenous bases
What do we call the structure formed when water molecules dissolve NaCl?
Hydroshells
What is electronegativity?
It is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.
How much more acidic is bleach (pH of 12) than rain water (pH of 5)?
It's not more acidic, it's more basic.