How Structure Influences The Properties And Uses Of Substances Flashcards
Three substance structures
Simple molecular, giant ionic and giant covalent.
Three strong bonded molecules
Ionic, covalent and metallic.
The bonds between the molecules are called
Intramolecular bonds.
Properties of intramolecular bonds …
They’re strong.
What is formed when different metals are combined?
Alloys.
What is a shape memory alloy?
An alloy that remembers is original state and returns to that shape when heated.
Properties of transition metals
Hard, tough and strong due to their metallic bonds.
Good conductors of heat and electricity.
High melting and boiling points.
High density.
Bonds between atoms are called
Intermolecular bonds.
Name three transition metals
Iron, copper and nickel.
They can be used to speed up chemical reactions because they can be used as…
Catalysts.
What is nanochemistry?
A branch of nanoscience, deals with nanomaterials and nanotechnology.
Nanoparticles are……..than regular atoms.
Smaller.
Nanoparticles are……than most molecules.
Bigger.
Nano particles have a……surface to volume ratio.
High.
What is polymerisation?
The joining of small molecules(monomers) into very large and long molecules(polymers)