Notesale: Turn your study into money

Document Preview

Extracts from the notes are below, to see the PDF you'll receive please use the links above

---

GCSE Chemistry - What is a Hydrocarbon? What are
Alkanes? Hydrocarbons and Alkanes
In today's video, we'll be taking a look at hydrocarbons and specifically at alkanes
...
This molecule, called butane, is
a hydrocarbon, but this similar molecule called butanol is not a hydrocarbon because it also
has an oxygen atom
...
That's all for now! If you enjoyed it, then do tell
your friends about us and we'll see you next time in our next video
...
They form a homologous series, meaning that each member of the series
exhibits a similar chemical structure
...
Shorter alkanes with fewer than five carbons are gases at room
temperature, while those with between five and sixteen carbons are liquids, and alkanes with
chains longer than sixteen carbons are solid
...
The properties of hydrocarbons, such as alkanes,
depend on the length of their carbon chain
...
When
hydrocarbons are burned as fuels, the process is called combustion
...


GCSE Chemistry - Addition Polymers & Polymerisation
In today's lesson, we will discuss the process of creating addition polymers from alkenes
...
Under
precise conditions, this double bond can split to form a single bond, allowing carbon atoms
to build new bonds with other elements
...
Finally,
naming the polymers is easy; just include the prefix "poly" before the monomer's name

GCSE Chemistry - Alcohols
In today's topic, we will talk about the definition of alcohols, their properties, and uses
...
Although they look
almost similar to alkanes, the main difference is that alcohols have a hydroxyl group (-OH)
instead of a hydrogen atom in their molecular structure
...
" For example, if we take an alkane, such as
ethane, and replace one of its hydrogen atoms with a hydroxyl group, we get ethanol
...
They are named with the suffix "-anoic acid," for example, a carboxylic acid with three
carbons is called propanoic acid
...


GCSE Chemistry - Esters
Esters have a pleasant smell and are commonly described as sweet or fruity
...
Esters can be found in perfumes and food flavorings
...


GCSE Chemistry - Condensation Polymers (Polyesters)
In today's discussion, we will be examining a type of condensation polymers known as
polyesters which are made up of ester links
...
On the whole, polyesters are
biodegradable, which implies that microorganisms and bacteria can break down the ester
links, making them decompose naturally
...
So, in conclusion, polyesters
are an eco-friendly alternative to plastics as they break down easier in the environment

GCSE Chemistry - Naturally Occurring Polymers Polypeptides, DNA, and Carbohydrates
In today's discussion, we will be focusing on naturally occurring polymers
...
As a
quick reminder, polymers are long chains of smaller molecules known as monomers
...
Meanwhile,
carbohydrates refer to a group of various polymers and monomers that provide us with
energy

Thanks…

---