PPT-OBTAINING METALS

METAL CHEMISTRY N4 CHEMISTRY N5 CHEMISTRY After completing this topic you should be able to OBTAINING METALS State ores are naturally occurring compounds of metals State the less reactive metals including gold silver and copper are found uncombined in the Earths crust and the more reactive metals have to be extracted from their ores. This instability is what drives the process of corrosion and it results from the fact that a refined metal is continually trying to revert to its natural state the mineral Some metals do this faster than others The Galvanic Series ranks corrosion te Dean R. Beal . CISA, . CFE, ACE. Allegation. Anonymous Tip. Ethics Line. Risk . Assessment. Audit. Continuous Auditing/Monitoring. Allegation. Fraud and/or Abuse:. Breaches of Confidentiality. Running a Personal Business. w Circular  2 Obtaining Access to and Copies of Records and Depositscopying fee. But if you can provide a registration number or, for recorded documents, a volume and document or page number, no sear Why are metals used to make these items?. Properties of metals . What property of metals is being . utalised. in the images on the previous slide?. Fishing sinker. Cooking pot. Electrical wires. Bread ties. 20. th. century building materials. Pre-20. th. century metal use. The 20th century has seen the rapid expansion of the number of . metal blends . used in the building process, both in the structural components and as decorative elements.. Metals. In the Construction Industry we use metals in the many areas such as;. Structural. Claddings. Architectural Systems. Building Service. Metals. Metals that are commonly used in the Construction Industry are;. Metals; ferrous, non ferrous, alloys. Ferrous metals . · Ferrous metals including: mild steel, high carbon steel, cast and wrought iron . · Availability of stock forms such as sheet, bar, tube and angle . CHAPTER 1. ~ Introduction ~. Examples. : . Toasting time, Temperature settings, etc. .…. 3. What is “random variation” in the distribution of a population?. POPULATION 1:. . Little to no . variation. w Circular  2 Obtaining Access to and Copies of Records and Depositscopying fee. But if you can provide a registration number or, for recorded documents, a volume and document or page number, no sear Elements in Group 1 are called . alkali metals. . lithium, sodium, potassium, rubidium, cesium, and francium . • Alkali metals are so named because they are metals that react with water to make alkaline solutions. . HL: Locate the alkali metals on the periodic table.. HL: Describe the properties of the alkali metals.. HL: Describe the reactions of the alkali metals with air.. HL: Describe the reactions of the alkali metals with water using word equations.. Dean R. Beal . CISA, . CFE, ACE. Allegation. Anonymous Tip. Ethics Line. Risk . Assessment. Audit. Continuous Auditing/Monitoring. Allegation. Fraud and/or Abuse:. Breaches of Confidentiality. Running a Personal Business. Patel Sikora. What are Alkali Metals?. The alkali metals are located in Group 1 of the periodic table. They are a series of chemical elements which have similar trends and properties. Alkali metals are so called because when they react with water alkalis (strong bases that can neutralize acids) are formed.. Strength. – metals that are . strong. are used to make car bodies, bike frames, ships, planes etc. . Malleability. . (mouldable). – This means that that they can be . shaped by hammering or rolling.