Metallic bonds Study guides, Class notes & Summaries

A LEVEL CHEMISTRY WITH VERIFIED QUESTIONS AND ANSWERS Weak acid - an acid that is only slightly ionised/dissociated in aqueous solution Oxidation - loss of electrons Reduction - gain of electrons Ionic bonding - The electrostatic attraction between oppositely charged ions Covalent bonds - sharing of a pair of electrons Electronegativity - the ability of an atom to attract the electrons in a covalent bond Relative atomic mass - The weighted mean mass of an atom of an element ...

AMPP CIP LEVEL 1 - Basic Coating Inspector Exam Questions With Correct Answers What are Volatile Organic Compounds (VOCs)? - answerChemicals that easily evaporate at room temperature. What are solvents? - answerSubstances that dissolve other substances to form a solution. Why can solvents in coatings be harmful? - answerBecause they can release VOCs into the air. What are some examples of solvents used in coatings? - answerAcetone, toluene, xylene, and ethyl acetate. What are three com...

What are Volatile Organic Compounds (VOCs)? Chemicals that easily evaporate at room temperature. What are solvents? Substances that dissolve other substances to form a solution. Why can solvents in coatings be harmful? Because they can release VOCs into the air. What are some examples of solvents used in coatings? Acetone, toluene, xylene, and ethyl acetate. What are three commonly used galvanic anodes for carbon steel? Zinc, Aluminum, and Magnesium What is the effect of temperatu...

ACS Gen Chem 1 Exam 89 Questions with Verified Answers Extensive Property - CORRECT ANSWER Values that depend on how much you have Intensive property - CORRECT ANSWER Independent of size sample Density - CORRECT ANSWER Mass/volume Homogeneous mixture - CORRECT ANSWER Same throughout, indistinguishable parts Heterogeneous - CORRECT ANSWER Different parts, distinguishable parts Diatomic elements - CORRECT ANSWER N2, O2, H2, Cl2, Br2, I2 John dalton - CORRECT ANSWER Founded the...

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 ...

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...

MATSE 259 Exam 1 With Complete Solutions Hooke's Law σ = Eε σ: engineering stress ε: engineering strain E: modulus of elasticity Elastic Elongation and Strain v = -εx/εz = -εy/εz applied tensile stress, elastic elongation and accompanying strain Tensile Strength (MPa or psi) -Stress at max of stress-strain curve -Max stress that can be sustained by a structure in tension Toughness -Ability of material to absorb energy up to a fracture -Area under stress-st...

Isomer correct answers each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties. metals often react with strong acids to generate ____ correct answers metals often react with strong acids to generate H2 Ionic Crystalline Solids correct answers Strong Electrostatic Attraction High Melting Point Hard Brittle Insulator Soluble Molecular Crystalline Solids correct answers Weak Intermolecular Forces (<...

Summary NACE CP2 Study Guide Complete Solutions Verified oxidation loss of electrons, positive charge atoms (anode) reduction gain of electrons, negative charged atoms (cathode) forms of corrosion uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hyd...

AMPP CIP LEVEL 1 - Basic Coating Inspector Exam Questions With Correct Answers What are Volatile Organic Compounds (VOCs)? - answerChemicals that easily evaporate at room temperature. What are solvents? - answerSubstances that dissolve other substances to form a solution. Why can solvents in coatings be harmful? - answerBecause they can release VOCs into the air. What are some examples of solvents used in coatings? - answerAcetone, toluene, xylene, and ethyl acetate. What are three com...