The alkali metals are found in group 1 of the Periodic table. They are very reactive metals and do not occur freely in nature. Alkali metals are malleable‚ ductile‚ and are good conductors of heat and electricity. Alkali metals can also explode if they are exposed to water. The Alkali metals are: lithium‚ sodium‚ potassium‚ rubidium‚ cesium‚ and francium. Lithium The mineral petalite‚ which contains lithium‚ was discovered by a Brazilian scientist named Jose Bonifacio towards the end of the
Premium Potassium Sodium Chemical element
Heavy Equipment Safety Warnings Axis Capital Group Singapore Jakarta Malaysia Beijing Operator Training Safeguarding heavy equipment operators starts with right training. Training should contain formal (classroom-type) instruction‚ demos by the trainer‚ practical exercises executed by the trainee‚ and an evaluation of the operator’s performance in the workplace. A common category of injury connected with heavy equipment consists of mounting and dismounting vehicles. The training offered should
Premium Jakarta Southeast Asia Beijing
William III William of Orange or William III was a sovereign Prince of Orange of the House of Orange Nassau by birth. From 1672 he governed as Stadtholder William III of Orange over Holland‚ Zeeland‚ Utrecht‚ Gelderland‚ and Overijssel of the Dutch Republic. From 1689 he reigned as William III over England and Ireland; it is a coincidence that his regal number (III) was the same for both Orange and England. William III was not an absolute ruler because when he ruled over England and Ireland he did
Premium William III of England Magna Carta Netherlands
is made from hardened steel with sharp points at each end. Lines drawn with a scribe are far more accurate than a line drawn with a pencil or pen. A scriber is used to make sharp‚ clearly defined lines on metal. An Engineers Square consists of a metal blade set at 90 degrees to a solid metal block (the stock). Practical uses of an engineer square is a guide for a scriber when marking out lines at right-angles to the edge of the work and a guide to setting up or checking work to see if it’s squared
Premium Ruler Measurement Geometry
On Monday‚ April 10th‚ I went to see the play Orange Light written by Howard Craft. The play was directed by Kathryn Hunter Williams and shown in the Kenan theatre which is within the Center for Dramatic Arts. This play is about the local tragedy of the Imperial Food Processing Plant fire that happened in Hamlet‚ North Carolina. I saw the closing performance of the show‚ and while the general message of the play did come across‚ there were several moments that took me out of the play or completely
Premium Woman Gender Abuse
Chemistry Essay On Metals Iraj Malik 12/10/2012 MYP-5 The International School A metal is defined as a chemical element that is malleable and ductile‚ usually solid‚ has a characteristic luster‚ and is a good conductor of heat and electricity‚ e.g. copper or iron. Metals form oxides that are basic‚ they are good reducing agents and metals have lower electro negatives.There are many properties of metals. The chemical properties are that they can combine together with other metals to form am alloy
Premium Metal Aluminium Copper
us being satisfied from it‚ instead of throwing the peel after we eat or putting it aside why not use them. By doing this we can help in lessening the chemical use in the society‚ to maintain a greener environment and to save money by using alternatives. Instead of banana peel‚is there another alternative for a shoe polisher? An alcohol. Alcohol is more effective than the banana peel because it can really clean any item while the banana peel might stain the shoe. OBJECTIVES OF THE STUDY The
Premium Starch Glucose Enzyme
without metal. The metals we use in our houses are mostly for keeping them sturdy. Though there is one problem we have when it comes to metals. That problem is that they rust. Metals rust when they are in contact with oxygen‚ and water. They rust much faster when they are in contact with salt water‚ and acid rain. We chose to see what would happen to various metals when they contacted with salt water. When the electrons move around in the salt water‚ it causes the metals to rust. The metals we chose
Premium Zinc Zinc Metal
– P25 (P10 — P35) CVD-coated carbide grade for finishing to roughing of steel and steel castings. The combination of a wear resistant coating and a tough substrate allows the grade to handle continuous cuts as well as interrupted cuts at high metal removal rates. GC1525 (HC) – P15 (P05 — P25) A PVD coated cermet with very high wear resistance and good edge toughness. For finishing and semi-finishing of low carbon and low alloyed steels. To be used when good surface quality is demanded at
Premium Steel Carbon
Density of Metals Lab 1. Purpose The purpose of this lab was answered in 4 questions‚ and their answers are here shown. The density of the metals we used were 5g/cm3. The density of a metal piece does not depend on its size‚ it depends on the total mass and total volume. The most accurate way of determining density is dividing mass by volume. You can’t identify metals by their density. It can help you narrow the options down‚ but you can’t identify a metal by using only its density. 2. Question
Premium Volume Measurement Density