A 50% yield
In this section we consider how much product is formed by a chemical reaction . Some reaction processes are not very efficien...
Chromatography is another important separation technique. Several different types of chromatography exist.
Students should: 1.10 describe these experimental techniques for the separation of mixtures: simple distillation fractional distillation filtrat...
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Water is an odourless, colourless liquid. So are many other chemicals .
Introduction Water has no obvious smell. Water has no taste and water is colourless. Water has a neutral pH value ( pH 7). Many other chemi...
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​To test the effect of particle size on the rate of oxidation we prepared three samples of steel wool each with different levels of coarseness (s...
Introduction ​Hydrogen is a flammable gas. It burns in air to produce water. A convenient test for hydrogen is to put a lighted splint in the mouth of...
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Sun, sea, sand and air. Elements, compounds or mixtures?