Structure of Water
Intramolecular Forces
Intermolecular Forces
Electronegativity
100

What two elements are in water?

Hydrogen and Oxygen

100

Name two types of Intramolecular (within the molecule) forces.

Covalent bonds and Ionic bonds

100

Which is stronger, an Intermolecular Force (between two molecules) or an Intramolecular Force (within a molecule)?

Intramolecular Force - Ionic and Covalent Bonds within a molecule.

100

There are two types of Covalent Bonds. What types are there?

Polar and Non-polar

200
How many hydrogen atoms are in a water molecule? 
There are 2
200

What happens in a Covalent Bond?

The electrons between the atoms are shared.

200

What type of Intermolecular Force is a special type of Dipole-Dipole bond created using Hydrogen and specific molecules with a high electronegativity?

Hydrogen Bonds

200
  1. Less than 0.5 ---- Nonpolar Covalent
  2.  0.5 - 1.6 -------- Polar Covalent
  3. 1.6-2.0 ---------- check for a metal.
  4. 2.0 or more --------- Ionic

What kind of bond has an Electronegativity difference of 0.9?

Polar Covalent

300

What is the charge of the Hydrogen end of the water molecule? Negative or Positive?

Positive charge

300

What happens in an Ionic Bond?

Electrons are transferred from one atom to another.

300

What type of Intermolecular Force can be found between two molecules with Dipole moments (Polar molecules)?

Dipole-Dipole Bond

300
  1. Less than 0.5 ---- Nonpolar Covalent
  2.  0.5 - 1.6 -------- Polar Covalent
  3. 1.6-2.0 ---------- check for a metal.
  4. 2.0 or more --------- Ionic

What kind of bond has an Electronegativity difference of 2.3?

Ionic

400

What is the charge of the Oxygen end of the water molecule? Negative or Positive?

Negative charge

400

What type of Ion is formed when it loses electrons and has a positive net charge? Cation or Anion?

Cation (because it is paw-sitively charged)

400

What type of Intermolecular Force can be found between a molecule with a Dipole moment (Polar molecule) and an Ion?

Ion-Dipole Interaction

400

When looking at the Electronegativity Table, which way do the numbers increase?

A. Down and left

B. Down and right

C. Up and left

D. Up and right

D. Up and right

500

What kind of molecule is water? Polar or Nonpolar?

Polar

500

What type of Ion is formed when it loses electrons and has a positive net charge? Cation or Anion?

Anion

500

What are the 3 types of elements that a Hydrogen atom can bond with to form a Hydrogen Bond?

Nitrogen, Oxygen, and Fluorine (N, O, and F)
500

How can you find the Electronegativity Difference between two atoms?

Subtract the electronegativity of one atom from the other, making sure to put the larger number on top.

M
e
n
u