Chemical Nomenclature refers to the naming systems used with chemical formulas. This worksheet focuses on the most basic chemicals and nomenclature systems. Please read the information concerning each problem set and then attempt the problems associated with that information. The simplest compounds contain just two elements. Sodium chloride‚ NaCl‚ is an example of a binary compound. Several other examples are listed below. Potassium bromide KBr Calcium bromide CaBr2 Lithium fluoride LiF
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In the first reaction‚ magnesium was burned to produce magnesium oxide. The reaction produced a bright light‚ which is evidence of a chemical change. The second reaction occurred as a result of solid magnesium reacting with hydrochloric acid. The reaction produced heat and bubbles‚ both indications of a chemical change. A wood splint was used to determine that the gas produced was hydrogen gas‚ hence the other product is magnesium dichloride. In the third reaction‚ ammonium carbonate was heated to
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Element: Simplest form of matter to have unique chemical properties. Atom: The smallest particles with unique chemical identities. Nucleus: Center of an atom (composed of protons and neutrons). Proton: Have a single positive charge (+1). Neutron: Have no charge. Electron: Tiny particles with a single negative charge and very low mass (-1)/determines chemical bonding properties of an atom. Atomic Number: Number of protons in the nucleus. Atomic Mass: Approximate number of protons and neutrons
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Chemical reactions involve the making and breaking of bonds. It is essential that we know what bonds are before we can understand any chemical reaction. To understand bonds‚ we will first describe several of their properties. The bond strength tells us how hard it is to break a bond. Bond lengths give us valuable structural information about the positions of the atomic nuclei. Bond dipoles inform us about the electron distribution around the two bonded atoms. From bond dipoles we may derive electronegativity
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INTRODUCTION TO CHEMICAL BONDS CHEMICAL BOND Definition: A chemical bond is defined as a force that acts between two or more atoms to hold them together as a stable molecule. Main types of bond: 1. Ionic or electrovalent bond‚ 2. Covalent bond‚ 3. Coordinate covalent bond Forth type of bond: Metallic bond: The type of bonding which holds the atoms together in metal crystal. Valence electron: The electrons in the outer most energy level in an atom that takes part in chemical bonding
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you thought diamonds were a confusing topic‚ since you have color and clarity to consider‚ you haven’t ventured into the world of diamond simulants‚ yet. There are mined diamonds‚ lab-created diamonds and simulants. The categories can be incredibly confusing‚ so here we’ll focus on simulants and the difference between Asha and Diamond Nexus simulants in particular. What is a Simulant? First‚ you might be wondering what is a simulant. A simulant is a material that looks like diamond but does not
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Chemical Periodicity ------------------------------------------------- ABSTRACT The experiment chemical periodicity shows the properties and reactions belonging to group IA‚ IIA‚ and IVA. Proper procedures and observations were done to determine the solubility‚ physical state‚ color‚ and appearance of the compounds namely Li2CO3‚ Na2CO3‚ K2CO3‚ CaCO3‚ and BaCO3. The results shows that Li2CO3‚ Na2CO3‚ K2CO3 were soluble in water‚ while MgCO3‚ CaCO3‚and BaCO3 were not soluble. All of these compounds
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Chemical Bonding Chemical compounds are formed by the joining of two or more atoms. A stable compound occurs when the total energy of the combination has lower energy than the separated atoms. The bound state implies a net attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent Bonds Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms‚ in contrast to the transfer of electrons in ionic bonds. Such bonds lead
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■ Indian Journal of Commerce & Management Studies ISSN – 2229-5674 SHORT-TERM LIQUIDITY MANAGEMENT- A STUDY OF INDIAN STEEL COMPANIES Dr. Amalendu Bhunia Affiliation: Reader in Commerce‚ Fakir Chand College under C.U.‚ Diamond Harbour‚ West Bengal‚ India. bhunia.amalendu@gmail.com ABSTRACT The overall efficiency is vital from the viewpoint of short-term liquidity and at the same time proper plane of profitability is required for the business enterprises. Consequently‚ the affiliation
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TITLE PROPOSAL: Online Grading System PROPONENTS: 1. 2. 3. 4. 5. GENERAL OBJECTIVE: To develop an electronic and advanced system that will allow the students to show their grades online SPECIFIC OBJECTIVE: 1. 2. 3. 4. 5. FUNCTIONS: 1. 2. 3. 4. 5. FEATURES: 1. 2. 3. 4. 5. APPROVED BY: COMMITTEE COMMITTEE PUPSMBC GRADING SYSTEM KIOSK Project Proposal COMP4013- PROJECT MANAGEMENT Contents 1Introduction
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