Atoms, elements and molecules are the building blocks of everything that makes up our world, including ourselves. In this unit you will learn the basic chemistry of how these components work together, starting with a chemical compound we are all very familiar with - water. By the end of this unit you should be able to: read data presented in tables; use scientific notation to express both large and small quantities; appreciate why chemists use different models to represent molecules; identify the number and type(s) of atom present in a molecule from its chemical formula; identify the reactants and products of a reaction in a chemical equation; read and write using chemical notation; write a balanced chemical equation to represent a chemical reaction; access the Drinking Water Inspectorate (DWI) website and retrieve information about ions in drinking water.
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