Paper 1 Flashcards
How does sodium react with water
Fizz
Exothermic
Produce alkali
How does sodium react with oxygen
Metal oxide
Dull
How does sodium react with chlorine
Salt
White powder
What is an ionic bond
Electrostatic attraction
What is ionic bonding
Transfer of electrons from metal to non metal
How ions formed
Gain or loss of electrons
What is covalent bonding
Sharing of electrons in non metals
How does metallic bonding arise
Postitive particles in sea of free delocalised electrons
Y do metals have high melting and boiling points
Lots of energy to separate
How do metals conduct electricity
Movement of free electrons
Structure of ionic compound
Lattice
+ - ions sitting next to each other
Lots of them
Properties of ionic compound
High mp bp
Only conduct when molten or dissolved not solid (ions not free to move around)
Structure of a simple covalent compound
Low mp bp
Doesn’t dissolve in water
Structure of giant covalent
Lattice
Large
Properties of giant covalent compound
High mp bp
Does not conduct electricity
Structure of carbon
4 carbon carbon bonds
Strong inter molecular structure
Describe difference between bonding in DiamoNds and bonding I. Graphite
Diamond- 4 carbon carbon bonds
Graphite- 3 carbon carbon bonds (sliding, soft, in between layers electron so will conduct)
Fullerenes
Drug delivery systems
Good for lubricants
Carbon spheres cages
Mass or volume of a product?
Scale
Calculate concentration of solution
Amount / volume
