Ionic compounds Flashcards
1
Q
What are ionic compounds?
A
Compounds that only conatim ionic bonds
2
Q
What are ionic bonds?
A
Attraction between ions
3
Q
Describe the structure of ionic compounds.
A
- regular lattice structure
- Giant ionic lattice
- Electrostatic forces( very strong) attract opposite charge ions keeping it tightly packed
4
Q
What are the properties of ionic compounds?
A
- High melting and boiling points because a lot of energy is needed to break down the electrostatic forces.
- Conducts electricity when liquid
- Dissolve in water
5
Q
How do we work out ionic compound formulas?
Overall charge of an ionic compound = 0
A
Chemical formula of Calcium Nitrate
- Write the formula for calcium and nitrate ions
Ca 2+ NO3- - The overall charge must be . So balance it by having the same numbers both sides.
Ca(No3)2