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Obtaining And Using Metals Crossword Puzzle Answer

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Obtaining and Using Metals



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4 A reaction where a more reactive element takes the place of a less reactive element in a compound.
5 A list of metals in order of reactivity with the most reactive at the top.
6 A reaction in which a metal reacts with air and sometimes water to form a metal oxide or hydroxide.
7 The process in which energy transferred by a direct electrical current decomposes electrolytes.
8 The reaction between iron, air and water to form hydrated iron(III) oxide (rust).
9 A process in which a metal is obtained from its ore.
10 A dull film on a metal’s surface.
11 A rock that contains a high concentration of a metal or metal compound.
14 A metal that occurs uncombined with any other element.
1 A reaction in which oxygen is lost by a chemical substance; gain of electrons by an atom or negative ion.
2 A reaction in which oxygen is added to a chemical substance; loss of electrons by an atom or negative ion.
3 A technique used to assess the environmental impact associated with all the stages in the life of a product from cradle to grave.
12 Converting waste materials into new products.
13 A reaction in which reduction and oxidation take place.
 
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