1.6 understand the differences between elements, compounds and mixtures

Element – elements that consist one type of atom only, e.g. Oxygen, copper and aluminium

Compound – substance with two or more different elements which are bonded together. Once formed, it is very difficult to separate molecules as they have been chemically bonded. Properties of compound are often not the properties of the original elements, as hydrogen and oxygen exist as gasses at room temperature, but chemically bonded they are H20, also known as water at room temperature

Mixtures – group of elements and compounds mixed together. Not necessarily chemically bonded

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