Quiz First do the lucky dip question you took, once finished return to the writer of the questions. Describe galvanization in one sentence. Why do we galvanize.

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Presentation transcript:

Quiz First do the lucky dip question you took, once finished return to the writer of the questions. Describe galvanization in one sentence. Why do we galvanize metals? What is an alloy? Give two examples. Write the word equation for metal reacting with oxygen. What is the common name for hydrogen oxide?

Metal water reaction As well as acids and oxygen, some metals can react with water to form metal oxide and/or metal hydroxide. The Word equation is: Metal + water  Metal oxide + hydrogen gas (or metal hydroxide) e.g. Mg + H2O  MgO + H2 Ca + H2O  Ca(OH)2 + H2