Metallic solids - Study guides, Class notes & Summaries

Swimming Pool Operator Certification Questions with Verified Answers First step of fecal accident procedure Direct all bathers to leave the pool. All affected waters must be closed to swimming until proper procedures for contamination have been completed Second step of fecal accident procedure Manually remove as much of the material as possible using a net or scoop and dispose of it in a sanitary manner. Clean and disinfect the scoop or net. After cleaning leave the net or scoop immers...

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Solar System - Science Olympiad Questions and Answers Rated A+ How did the terrestrial planets form? In the proto-Solar-Sytem, after the sun formed, the rest of the materials orbiting close around it began to clump together too. However, closer to the sun, lighter materials like gases blew away and only rocky material was left, causing the four terrestrial planets, and some of their moons, to form. What are the characteristics of Terrestrial Planets? Solid bodies with a core surrounded...

Metallic Lattice Structure - Metal atoms have a weak hold on their outer shell or valence electrons. This allows the electrons to move freely through the metal without being bound to one atom. Each metal atom becomes a positively charged ion. Opposite charges attract and this electrostatic force provides multidirectional bonding between the positive ions and the 'sea 'of loose electrons around them. Ionic Lattice Structure - this occurs when metallic elements bond with non-metallic elemen...

MTL200 - Material Sciences and Engineering. Exam Questions With Verified Answers Chapter 1: 1. What is a composite? 2. What are advanced material? 3. Describe Metals: 3 points 4. Describe Ceramics and give an example 5. What is a traditional Ceramic? 6. What is a polymer? +History question - answer1. Composed of 2 or more individual materials ( material + polymer + ceramic) 2. Materials used in technology: semi-conductors, biomaterials, smart-materials, nano-materials 3) 1. One or ...

Tooling U Metal Cutting Exam with Complete Solutions (1) Bandsaw - Answer-A machine with a long, continuous cutting blade with serrated teeth that is looped around two or more wheels. The wheels continuously spin the blade during operation. Brass - Answer-An alloy of copper and zinc. Brass offers a balance of electrical and thermal conductivity and strength. Most EDM wire is made of brass. Capacitor - Answer-A device that stores an electric charge. EDMs require capacitors to generate the ...

UNE Gen Chem 2 Midterm- Exam with Correct Answers 1. An adhesive force: is the result of intermolecular forces that attract different molecules together 2. Metallic solids: are composed of atoms, with nuclei in a "sea" of delocalized electrons 3. Acetonitrile, CH3CN, is a common solvent used in organic chemistry labs. Acetonitrile evaporates very quickly at room temperature and feels noticeably cold when evaporating. If ”H vap for acetonitrile is 34.2 kJ/mol, how much heat is removed wh...

Acetate - C2H3O2- Ammonium - NH4+ Carbonate - CO32- Define a cation - An atom that loses an electron becomes a positively charged ion Define a covalent bond - A chemical bond formed by the sharing of a pair of electrons between atoms. Define a covalent compound - Composed of two or more nonmetal atoms bonded by sharing valence electrons. Define a group on the periodic table - The elements in any one column of the periodic table Define a metal, give its properties, and location on the pe...

Electron Dot Diagram Test Questions with Answers Electron Dot Diagram - Answer-A model of an atom in which each dot represents a valence electron cation - Answer-A positively charged ion Chemical Bond - Answer-An attractive force that holds together the atoms, ions, or groups of atoms in a molecule or compound. Formula Unit - Answer-the simplest collection of atoms from which an ionic compound's formula can be established Delocalized Electrons - Answer-electrons that are free to ...

Material Properties - Answer 1. Mechanical and Physical 2. Thermal 3. Electrical 4. Optical 5. Magnetic 6. Deteriorative (chemical eg corrosion) Metals Types and Properties - Answer metallic bonding--> sea of electrons -strong, ductile -high thermal & electrical conductivity -opaque, reflective Polymers/Plastics Types & Properties - Answer Covalent bonding--> sharing of electrons -soft, ductile, low strength, low density -thermal & electrical insulators -optically transluc...