Through an oxidation reaction of synthesizing pentaaminechloridocobalt (III) chloride with cobalt (II) hexahydrate and hydrogen peroxide‚ and then reacting the product with ammonium chloride and ammonia‚ complexes are formed with the chloride and ammonia ions. The balanced
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protons and neutrons Writing and balancing chemical equations 1. Check for diatomic gases and place the subscript 2 (N‚ O‚ F‚ Cl‚ Br‚ I‚ H) 2. Balance formulas of compounds and place c 3. Conservation of atoms (both sides should have equal # of ions of each element) 4. Law of conservation of mass (both sides should have equal mass) Isotopes 2 or more forms of the same element that differ in their mass number because they have different numbers of neutrons in their nuclei (atomic # will still
Free Atom Chemical bond Hydrogen
any of the chemicals. some chemicals with safety hazards we will be working with are Sodium chloride with is slightly toxic if ingested. Sodium Bromide which is slightly toxic if inhaled or ingested may cause serious eye damage if in contact. Sodium Iodide may cause serious eye damage‚ corrosion or irritation causes skin irritation. Silver Nitrate may cause skin corrosion or irritation also may cause severe skin burns and eye damage‚ very flammable keep away from heat‚ sparks‚ open flames‚ and hot surfaces
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Summary Researchers typically use a batch reactor to study reaction kinetics under ideal conditions. This experiment was carried out in other to study effect of temperature on reaction rate constant and also to study the effect of the reaction rate constant in a batch stirred tank reactor its important in chemical industry because it is used to determine the effect of temperature on reaction rate constant; it is also used in chemical and process industry for solids dissolution‚ product mixing‚ chemical
Free Chemical kinetics Chemical reaction Reaction rate
atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic compound Covalent: nonmetal & nonmetal Covalent bonds are shared; Ionic bonds are distributed Covalent bonds are stronger than Ionic bonds Ionic Compounds: Ionic compounds consist of positive and negative ions. The ions are held together by strong attractions between the oppositely charged ions‚ called ionic bonds Properties of ionic Compounds: The physical and chemical
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nucleons‚ protons and electrons 11. Cations are positive (+) ions and form when a neutral atom loses electrons. They are smaller than their parent atom. Which of the following will form an ion with a smaller radius that that of its atom? Cl N Br Ba 12. Anions are negative ions and form when a neutral atom gains electrons. They are larger than their parent atom. Which electron configuration is correct for a fluoride ion? 2–7 2–8 2–8–1 2–6 13. Ernest Rutherford’s gold foil
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joins the Na+. Since‚ the Oxygen of sodium saccharin is more electronegative than the nitrogen therefore this gives oxygen a higher partial negative charge therefore an attack on Oxygen will give a product that is formed faster; this can be called a kinetic product. The transition state energy is lower than a product formation by thermodynamic control. At thermal equilibrium at 80°C a more stable product is form from a higher transitional state energy. The nucleophiles in the molecule sodium saccharin
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Naming Chemical Compounds PART A Name the following 1 S Sulfur 2 Sb Antimony 3 N2 Dinitrogen 4 PO43- Phosphate 5 Au Gold 6 Rb Rubidium 7 LiCl Lithium Cloride 8 AlBr3 Aluminum (III) Bromide 9 KMnO4 Potassium Manganate (VII) 10 Cu(OH)2 Copper (II) Hydroxide 11 FeSO4 Iron (II) Sulfate 12 NH4Cl Ammonium Chloride 13 ZnCO3 Zinc Carbonate 14 SnF2 Tin (II)Fluoride 15 MgSO4 Magnesium Sulfate 16 MnO2 Manganese (IV) Oxide 17 Ca3(PO4)2 Tricalcium Phosphate 18 NaOH Sodium Hydroxide
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English Proficiency This test is designed to assess the test takers’ general proficiency in the use of English language as a means of self-expression in real life situations and specifically to test the test takers’ knowledge of basic grammar‚ their vocabulary‚ their ability to read fast and comprehend‚ and also their ability to apply the elements of effective writing. 1. Grammar 1. Agreement‚ Time and Tense‚ Parallel construction‚ Relative pronouns 2. Determiners‚ Prepositions‚ Modals
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association of molecules of a solvent with molecules or ions of a solute. As ions dissolve in a solvent they spread out and become surrounded by solvent molecules. Example: As an ionic compound dissolves‚ such as NaCl‚ the ions become surrounded by the solvent‚ say H2O(water) molecules. The ions are said to be ’solvated’ as they become surrounded by the solvent‚ similar to a hoard of bees surrounding a nest. The solvation process helps stabilize the ions in solution and prevents cations and anions from
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