CCH5U1

Question 1

What the ionic Compound Properties?

Answer 1

Hight Melting Points - A large amount of energy is needed to break the strong electrostatic bonds between the oppositely charged ions. Allowing them to move freely.

Hard - Due to the strong electrostatic force in the crystal lattice

Brittle - Due to the arrangement of the electrons in the crystal lattice, which cause it to break when hit upon by an external force.

Conduct Electricity - In a liquid state, since the electrons can freely move, and carry an electric current.

In the soldi state they are strongly boned in a crystal lattice, in which the charged particles are not free to move.

Question 2

Ionic Compounds in water?

Answer 2

the ions dissocate in the water from the lattice and form a solution called electrolyte.

Question 3

What are the different types of bonds?

Answer 3

Ionic Bond - Non-metal + Metal = Ionic Lattice

Metallic Bond - Metal + Metal = Metallic Lattice

Covalent Bond - Non-metal + Non-metal = Covalent Lattice or Molecules

Question 4

What is the Ionic lattice and Ionic Bonds?

Answer 4

Ionic Lattice - A structured arrangement of positively charged metal cations + negatively charged anions.

Ionic bonds - the electrostatic force between the oppositely charged ions, holding the lattice together

Question 5

What the Monatomic ionic Compounds?

Answer 5

Monatomic Ions - Ions formed from a single atom.
E.g Sodium Ion/Aluminium Ion

Monatomic Anions - Names formed by relacing ending of element with -ide

Question 6

what happens when Water is a solvent of ionic Compounds?

Answer 6

Dissocation - Separation of positive and negative ions from solid ionic compound to dissolve in water

Question 7

Attraction of ions and polar molecules

Answer 7

This is Ion-Dipole attraction

E.g NaCl in water - The positive ions in water are attracted to the negative Cl- and the negative ions of water are attracted to the positive Na+.

Question 8

Dissolution

Answer 8

Dissoultion is a solute dispersing in a solvent.

Eg. The dissolution of NaCl in water -
1. Ionic bonds within NaCl lattice are broken
2. Hydrogen bonds between water molecules are broken
3. Ion-dipole attraction from between ions and polar water molecules

Question 9

What is the SNAPE Rule?

Answer 9

Sodium
Nitrate
Ammonium
Potassium
Ethanoate