Metals Oxides and Non-Metal Oxides

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Presentation transcript:

Metals Oxides and Non-Metal Oxides

Venus Similar in size and shape to the Earth. Yet we know little about it..... Has an atmosphere that destroys space probes. Clouds of sulphuric acid and high temperatures. The sulphuric acid clouds are due to volcanic activity. S (s) + O2 (g) SO2 (g) When this gas is dissolved in water it is acidic solutions.

Metals Burning in Oxygen Metals burn in oxygen to form solid products. Some of these dissolve in water to give alkaline solutions.

Characteristics of Oxides Non-metals generally form acidic oxides that dissolve in water to form acidic solutions. Metals form oxides that are solids. If they dissolve in water these oxides give alkaline solutions.

Examples http://www.youtube.com/watch?v=V1sQO91UvFI http://www.youtube.com/watch?v=QosTxXeE6UM http://www.youtube.com/watch?v=pT0w6BRfDGs&feature=relmfu

Oxides Using your books on page 143 make a chart to classify non-metal and metal oxides

Amphoteric Metal oxides An amphoteric metal oxide or hydroxide is one that reacts with both an acid and an alkali to give a salt and water. Most important are zinc and aluminium oxides.