Reacting with Oxygen

• Oxidation is the process in which elements are combined with oxygen to form oxides
• Different types of oxidation include burning, corrosion, and displacement reactions
• Aerobic respiration is an oxidation reaction that occurs in all living organisms, where glucose is oxidized to form energy
• Alloys are mixtures of metals that are corrosion resistant
• Good fuels, such as oil and coal, produce a lot of heat energy when they burn
• Magnesium produces a white flame when burned
• Calcium produces a red flame when burned
• Burning, also known as combustion, is an oxidation reaction that produces heat energy and oxides as the main product
• Corrosion is when metals react with water, air, or acids to form oxides without burning, leading to a loss of surface shine and strength
• When iron corrodes, rust (iron oxide) is produced
• An alloy is a mixture of one or more metals combined to resist corrosion
• Stainless steel is an example of a strong, corrosion-resistant alloy made of iron, chromium, nickel, and carbon
• Alkali metals are stored in oil because they are highly reactive and corrode quickly in air
• A displacement reaction occurs when a metal displaces another metal lower in the reactivity series from a solution of the lower metal's salts
• Example for displacement reaction - magnesium displaces copper from a solution of copper sulphate, forming magnesium sulphate and copper