C2E GLOSSARY

ALL THE WORDS YOU NEED TO KNOW FOR C2E SINGLE SCIENCE, OCR BOARD - HIGHER TIER, CHEMISTRY

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C2e
Acid rain - rain with a pH below about 6 formed when pollutants
such as sulphur dioxide and nitrogen oxides dissolves.
Corrosion ­ the wearing away of the surface of a metal by
chemical reaction with water.
Oxidation ­ combining with oxygen.
Rust ­ product formed when iron or steel are exposed to air and
water. The brown compound is a hydrated iron(III) oxide.

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