Alkanes

• Alkanes

  Alkanes have the sufix ane
• Shape of alkanes

  Alkanes has a tetrahedral structure with the bond anle 109.5
• Effect of Carbon chains on boiling point of alkanes

  Boiling point increases as carbon chains increase in number, due to this surface area increases and there are more points of surface contact leading to more London forces
• Effect of branching on boiling point of alkanes

  Boiling point decreases as branching increases due to fewer point of surface contact which reduces london forces
• Heterolytic fission

  Both electrons in the covalent bond move onto one atom resulting in positively and negatively charged ions
• Homolytic fission

  One electron from the covalent bond moves onto each atom to form two free radicals
• Remebering Hetero and homo-lytic fission

  Hetero is straight and you only like one (both electrons move onto one atom)
• Free radical

  A highly reactive species containing an unpaired electron