WebFeb 25, 2024 · Everything you need to know about polymers!Polymers are large molecules made up of lots of repeating units called monomers. This video covers: how to identif... WebPast papers, summary notes and past exam questions by topic for AQA, CIE, Edexcel, OCR and WJEC Chemistry A-levels, International A-levels, GCSEs and IGCSEs
Introduction to macromolecules (article) Khan Academy
WebSimple explanation of Polymers and Monomers. Polymers are large molecules that are made up of many repeated small molecules. Many small individual molecules, called … WebThis video covers:- Examples of polymers that occur naturally, including:- Polypeptides, which are made of amino acids- DNA, which is made of nucleotides - C... sharps and needles training
27.8: Polymers and Polymerization Reactions - Chemistry LibreTexts
WebOct 13, 2024 · Even the DNA in your cells is a polymer. By definition, polymers are large molecules made by bonding (chemically linking) a series of building blocks. The word polymer comes from the Greek words for “many parts.”. Each of those parts is scientists call a monomer (which in Greek means “one part”). WebAddition Polymerisation. Addition polymers are formed by joining lots of alkene molecules together. The single alkene is called a monomer and when several monomers are connected together, we call this a polymer.Polymerisation happens when the double carbon bond breaks, allowing another alkene to connect to the carbon.This happens multiple times … WebProperties. Uses. Low density poly (ethene), LDPE. Flexible, unreactive, can be made into films. Most carrier bags, bubble wrap. High density poly (ethene), HDPE. Strong, flexible, resists ... is an example of corrosion. It occurs when iron or steel reacts with oxygen and wa… The main stages in the Haber process. In the Haber process: nitrogen (extracted f… Life cycle stage Plastic carrier bags Paper carrier bags; Raw materials: Crude oil i… This is because: dissolved salts can sometimes be harmful for humans; microbe… The human population is growing very quickly and many people argue that human… sharp sapphire birthstone