Examples of synthesis reactions: 1. Metal + oxygen → metal oxide EX. 2Mg(s) + O2(g) → 2MgO(s) 2. Nonmetal + oxygen → nonmetallic oxide EX. C(s) + O2(g) → CO2(g) 3. Metal oxide + water → metallic hydroxide EX. MgO(s) + H2O(l) → Mg(OH)2(s) 4. Nonmetallic oxide + water → acid EX. CO2(g) + H2O(l) → ; H2CO3(aq) 5. Metal + nonmetal → salt EX. 2 Na(s) + Cl2(g) → 2NaCl(s) 6. A few nonmetals combine with each other. EX. 2P(s) + 3Cl2(g) →
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CHAPTER 5: PERIODIC TABLE Development of the Periodic Table • i) Substance exist: naturally in elemental form Example: Gold‚ Uranium as unstable compound Example: Radioactive compounds as stable compound (majority) How to know whether a substance is a compound OR an element? ii) iii) • • • Grouping system: 1800: 31 elements identified 1865: 63 elements identified Audi Majdan – DMC 101 – KLIUC 1 • Dmitri Mendeleev: i) ii) iii) iv) Develop a system to group
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Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display By: Pn. Nurul Ain Harmiza Abdullah Materials Engineering PTT 110 SEMESTER 1 (2013/2014) Foundations of Materials Science and Engineering‚ 5th Edn. in SI units Smith and Hashemi Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display PowerPoint Lecture Slides for Foundations of Materials Science and Engineering Fifth Edition William F. Smith
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Other minerals may have different colors. One example is quartz‚ which may be clear‚ purple‚ pink and even gray! 2.Luster- Luster is the way light reflects from a mineral’s surface. Luster is either metallic or nonmetallic. Metallic minerals look like.... well‚ a metal. Nonmetallic minerals can be glassy‚ dull‚ brilliant‚ waxy‚ earthy‚ or pearly. 3. Streak- The color of the powder of a
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properties: they are usually shiny (they have metallic luster)‚ have a high density‚ are ductile and malleable‚ usually have a high melting point‚ are usually hard‚ are usually a solid at room temperature and conduct electricity‚ heat and sound well. While there are several metals that are low density‚ soft‚ and have low melting points‚ these (the alkali and alkaline earth metals) are extremely reactive‚ and are rarely encountered in their elemental‚ metallic form. The electrical and thermal
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litmus indicator to each one. Observe the color change. DATA SHEET (Please see attached) TREATMENT OF RESULTS Elements that show metallic properties in the third row of the periodic table of elements are sodium (Na) and aluminum (Al). Those of magnesium (Mg)‚ silicon (Si)‚ phosphorus (P)‚ sulfur (S)‚ chlorine (Cl)‚ and argon (Ar) exhibit nonmetallic properties. The color of the litmus indicator changes as it combines with acidic and basic solutions. To indicate as to what property the element
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CHEMISTRY 1. States of Matter: Solid‚ liquid and gaseous states(general characteristics)‚ Change of states‚ effect of change of temperature and pressure on states of matter‚ evaporation‚ mixture‚ solution‚ its type and its concentration(percent strength by volume and by mass)‚ separation of components from a mixture using various physical methods‚ physical and chemical changes‚ compounds 1. NCERT class IX text book (chapter 1 and 2) 2. Foundation Science(Chemistry) :Class IX A. K. Singh ( Bharati
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EAS 100 Study Guide for the Lecture Quiz Note: There may be questions on the quiz on other topics‚ but the list below represents my best attempt to list the high points of our class material for you. THIS BRIEF OUTLINE DOES NOT REPLACE YOUR TEXTBOOK. YOU NEED TO STUDY IT THOROUGHLY TO DO WELL ON THE QUIZ! Chapter 1 What sciences are included in Earth Science? Encompasses all sciences that seek to understand the Earth and Earth’s neighbors in space. Including: geology‚ oceanography‚ meteorology
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Max Haney NT1310 Physical Networking Unit 10 Assignments 11/18/2014 Physical Networking Unit 10 Assignments Unit 10 Assignment 1 Fiber-Optic Installation – Conduit is pipe. It can be metallic‚ nonmetallic‚ flexible‚ or rigid(depending upon local codes) and runs from a work area to a telecommunications room to the equipment room. One advantage of using conduit to hold the cables is that conduit may already exist in the building. A drawback to conduit is that it provides a finite amount of space
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Week Four‚ write a 50- to 75-word response to each of the following questions. Your responses will be assessed according to the accuracy of the content. Minerals 1. How do minerals affect society? 2. What is the difference between metallic and nonmetallic minerals? Provide two examples from each category and discuss their uses. Mining 1. How are minerals extracted from the Earth and processed? 2. What are the different ways minerals can be mined? Provide a brief description of at
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