C2.2 Flashcards
What are materials
Chemicals or mixtures of chemicals which include metal, ceramics and polymers
where can materials be obtained
From living things such as cotton from cotton plants, paper, silk and wool
What is an alternative of materials from living things
Synthetic materials
what can make synthetic materials
Raw materials from the earths crust
what is crude oil
Consists of mainly hydrocarbons
Carbon and hydrogen atoms only
Used in fractional distillation
Thick black liquid
What is crude oil used for
Small percentage is used for chemical synthesis and the rest is used as fuels
Fractional distillation
Petrochemical industry refines crude oil by fractional distillation
Hydrocarbons are separated into fractions of different boiling points to produce fuels, lubricants and raw materials for chemical synthesis
What is the force of hydrocarbons
The longer the hydrocarbon molecule, the stronger the intermolecular force is
What can momemers do
Join together into very long molecules called polymers which is a process called polymerisation
