Accounting for electrons. The images in this slideshow here show how we can account for the way in which electrons are shared between atoms. ...

water expands when it freezes and ice therefore floats

1. Why is water a liquid and not a gas ( between 0 and 100oC) ? Water has a Relative Molecular mass ( Mr) of 18 ... Oxygen's Mr is 32. ...

Butane is used as a fuel. It is the fourth member of the alkanes.

 4.19 Some saturated hydrocarbons The Alkane series is a family of hydrocarbons.  The technical name for this sort of  "...

Plasma balls use a high voltage to ionise the gas inside

The trends in first ionisation energies give some important clues about the electron configuration of the elements.   What's the trend? Firs...

OCR Learning outcomes Additional guidance Reflux and distillation simulations  Simulate the oxidation of alcohols.. https://www.focuselearning.co...

CP 2CP3CP6CP9CP11CP13a CORE PRACTICAL 2: Prepare a standard solution from a solid acid and use it to find the concentration of a solution of sodium hy...

Turmeric contains the aromatic compound Curcumin

Intro image OCROCR 2EdexcelAQA Enter your text here ... Enter your text here ...  I had a dream!   This presentation outlines the way i...

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Intro image Edexcel 1Edexcel 2OCR Enter your text here ...  Exothermic reactions always lead to an increase in entropy of the surroundings.&...

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