Sometimes called the Reactivity series Reactions with carbon Displacement reactions A list of elements (usually metals) arranged in an order to show how easily they form compounds. Some elements arranged in order of chemical activity. The rate of chemical reactivity … Continue reading →
Rocks Most minerals come from rocks in the ground. Rocks from which we can obtain a metal are known as ores (eg Iron ore is a rock from which we can obtain iron). Some rocks (like chalk or limestone) are … Continue reading →
Elements, compounds and mixtures Elements in the Earth’s crust Obtaining metals from their ores There are about 100 elements in total, although only about 20 are in everyday use. An element is the simplest of all chemical substances. It … Continue reading →
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