Chemistry - Module 2 - Metal 1. Metals have been extracted and used for many thousands of years * Outline and examine some uses of different metals through history‚ including contemporary uses‚ as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with <2% carbon)Good tensile strength‚ cheap‚ rusts (corrodes) | - Railways‚ bridges‚ buildings- motor cars bodies‚ ships and trains- Engine blocks‚ fire hydrants‚ drainage
Free Periodic table Chemical element Metal
Oxidation & Reduction I. Metal-Metal Ion Displacement II. Halogen Displacement Reactions INTRODUCTION A series of experiments had been conducted to determine the order of displacement strengths of the metals and halogen chosen for the experiments. A displacement reaction is a reaction in which one element(metal or non-metal) displaces another element(metal or non-metal) from its salt solution. In the displacement reaction of metals‚ the more electropositive metal will displace the less
Free Oxidizing agent Chlorine Hydrogen
Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard‚ except alkali metals‚ such as sodium‚ potassium‚ lithium‚ etc. Sodium‚ potassium‚ lithium etc. are very soft metals‚ these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals
Premium Ion Chlorine Sodium chloride
In the Invisible Man‚ Clifton advertising the Sambo dolls comes as a shock to the readers and the narrator alike. A promising social reformer who wanted to break the racial barrier and to promote equality‚ he suddenly becomes a street peddler who sells the very items that contradict his beliefs and degrade his race. By marketing the dolls‚ Clifton creates a conflicting position in which he protests against the white authority yet seems to support the stereotypes that the whites has sent in place
Premium Black people Race White people
The current situation of our company Table 1 the comparison between North American and European market | market | Competition | volume | margins | lead times | price | North American | Huge | significantly more competitive | Huge | | shorter | More price-sensitive | European | | | smaller | satisfactory | | Pressure on price | The characteristics of its marketing 1 two major market areas: The first was to supply products of a type similar to our current electromechanical
Premium Manufacturing Strategic management Marketing
Metals Physical Properties of Metals versus Non-metals Properties | Electrical conductivity | Heat conductivity | Melting and Boiling points | Malleability & ductility | Lustre | Metals | Good | Good | High | High | Shiny | Non-metals | Poor | Poor | Low | Low (Brittle) | Dull | Chemical Properties of Metals versus Non-Metals Properties | Metals | Non- metals | Reaction with oxygen | Form basic or amphoteric oxides | Form acidic or neutral oxides | Ionisation | Lose electrons
Premium Oxygen Iron Carbon dioxide
extract a metal Industrial mineral- either has some direct practical use‚ or take part in some industrial process Gems and precious stones are an exception to industrial metals as they do have a direct ‘practical’ application but are dealt with separately. Some common minerals include: * * Silica- (silicon dioxide) most common mineral on earth * Calcite- (calcium carbonate) main mineral in limestone and marble Ore: A naturally occurring solid material from which a metal or valuable
Premium Copper Aluminium Mineral
Metals & Non-Metals Metals: Good conductors of heat and electricity. Have shining luster. Malleable (this means that they can be hammered or distorted). Ductile (this means that they can be drawn into wires). Most have high melting and boiling points. Are sonorous (give out sound when beaten). Usually solid at room temperature. An exception to this is mercury‚ which is liquid in nature. Examples: Aluminum‚ Gold‚ Copper‚ Silver‚ Sodium‚ Potassium‚ Mercury. Corrode or oxidize in
Premium Periodic table Atom Electron configuration
Quality Of Work-Life Strategies: A Conceptual Perspective Of Management Introduction: Quality of work life is a dynamic multidimensional construct that includes concepts such as job security‚ reward systems‚ training and career advancement opportunities‚ and participitation in decision making. Quality of work life and its significance in organizations have been debated and experimented with for decades. Today‚ most traditional organizations in India in particular view QWL as important‚ but
Premium Employment
Gothic Qualities in the Works of Poe What makes the work of Poe gothic? Gothic fiction‚ particularly that written by Edgar Allan Poe has a number of common themes‚ motifs and structures that make his work easily recognizable and more importantly‚ fits his stories into the classification of the gothic. Among these elements of the gothic that run throughout the works of Edgar Allan Poe include the pervasive theme of death and decay‚ which is almost always a staple in Gothic fiction‚ the theme or presence
Free Edgar Allan Poe Gothic fiction The Tell-Tale Heart