'Double covalent bonds' presentation slideshows

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Chapter 8

Chapter 8. Covalent Bonding. Why do Atoms Bond?. Atoms gain stability when they share electrons and form covalent bonds. Lower energy states make an atom more stable. Gaining or losing electrons makes atoms more stable by forming ions with noble-gas electron configurations.

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KS4 Chemistry

KS4 Chemistry. Alkanes and Alkenes. Contents. Alkanes and Alkenes. Alkanes. Combustion of alkanes. Alkenes. Cracking and polymerization . Summary activities.

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Cell Biology: Cell Compounds and Biological Molecules

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Carbon Compounds

Carbon Compounds. Alk anes. C n H 2n+2 Homologous Series Similar structure & properties Differ in number of CH 2 units Gradual change in physical properties i.e. Boiling point increases. Meth ane. methane CH 4. Eth ane. ethane C 2 H 6. Prop ane. propane C 3 H 8. But ane.

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Chapter 2. The Chemical Context of Life

Chapter 2. The Chemical Context of Life. Why are we studying chemistry?. Biology has chemistry at its foundation. The Basics. Everything is made of matter Matter is made of atoms Atoms are made of: protons + mass of 1 nucleus neutrons 0 mass of 1 nucleus

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Honors Medical Biology Semester One Jeopardy

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Polymerisation

Polymerisation. Plastics. Plastics are substances made from alkenes. Common plastics are: Polythene or poly(ethene). Used for plastic bags. Plastics. polystyrene:. Used for damage protection in packaging and insulation. Nylon and polyester are both used in clothing. nylon. polyester.

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- Lewis structures and bonds - bonding theories

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