Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Metals and Their Ores Answer all questions in the space provided. 1. Name a metal found as itself in the Earth’s crust. ……………………………………………………. 2. What type of compound are most metals found as in the Earth’s crust? ……………………………………………………………………………………………………………………………………………………………………………… 3. Name the most abundant metal found in the Earth’s crust. ……………………………………………………………………………………………………………………………………………………………………………… 4. What element must be removed from the ore in order to end up with the metal itself? ……………………………………………………………………………………………………………………………………………………………………………… 5. What do we call this process? ……………………………………………………………………………………………………………………………………………………………………………… 6. Give a definition for oxidation. ……………………………………………………………………………………………………………………………………………………………………………… 7. Below is part of the reactivity series. Potassium Sodium Lithium Calcium Aluminium Zinc Iron Tin Lead Copper Silver Gold Platinum a) Use a red line to show the position of carbon. b) Use a blue line to show the position of hydrogen. 8. Name a metal less reactive than carbon. ……………………………………………………………………………………………………………………………………………………………………………… 9. How is iron obtained industrially from iron ore? ……………………………………………………………………………………………………………………………………………………………………………… 10. Why can’t aluminium be obtained in this way? ……………………………………………………………………………………………………………………………………………………………………………… Summary Use words from the list to fill in the blanks. oxide carbon ores reduction • electrolysis blast furnace added oxidation naturally occurring minerals found in the Earth’s crust that are raw materials from which metals are extracted are called ………………… . • often the ore is a metal compound called an ………………… . • the removal of oxygen from a substance is called ………………… . • the opposite process is called …………………… . This is where oxygen is ……………………… to a substance. • iron is extracted from its ore using the element …………………… . This is done in the …………………… …………………… . • aluminium is too reactive so is extracted from its ore using ………………………… .