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- What is the difference between bond enthalpy and bond dissociation enthalpy?
- How does atomic absorption work?
- How does the iodine clock reaction work?
- Which factors determine the percentage yield in a laboratory preparation?
- What is the molecular formula of sulphur?
- How does copper react with nitric acid?
- Which factors contribute to the boiling point of ethanoic acid?
- Why can hydrogen peroxide act as both an oxidising agent and a reducing agent?
- Attack of the php insertion robots
- 2009 IB Chemistry syllabus review
BBC Science
- Baby Jupiter's huge weight gain January 6, 2009The planet Jupiter must have gained mass fast during its infancy, according to astronomers.
- US vows 'huge' marine protection January 5, 2009The US is to establish "the largest area of protected sea in the world", banning fishing and mining, around its Pacific islands.
- Milky Way 'bigger than thought' January 6, 2009The Milky Way has 50% more mass and is travelling 120,000km per hour faster than once thought, a study shows.
- Holes give edge to new MoD armour January 5, 2009Scientists from the UK Ministry of Defence (MoD) have devised ultra-hard vehicle armour to protect military personnel.
- Stethoscope 'hears' heart disease January 6, 2009How FBI technology is driving a medical advance
Firebox
- Minoru 3D Webcam - £49.95 December 30, 2008Add eye-popping depth to your webcam chats, and give movies an extra dimension with this, the world’s first 3D webcam. Simply hook up to the nearest USB port, pop on the retro-style specs and prepare to be blown away!