acid with metal can be tested by bringing a lighted candle near it. If the gas burns with pop sound‚ then it confirms the evolution of hydrogen gas. Burning with pop sound is the characteristic test for hydrogen gas. Reaction of acids with metal carbonate: Acids give carbon dioxide gas and respective salts along with
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to determine the phase of matter of sodium hydroxide.) Na2O (s) + H2O (l) → 2 NaOH (aq) 2. Translate the following chemical equation into a sentence. PbCl2 (aq) + Na2CrO4 (aq) → PbCrO4 ↓ + 2NaCl (aq) Aqueous solutions of lead (II) chloride and sodium chromate react to yield solid lead (II) chromate and aqueous sodium chloride. 3. Write the chemical equations for the following reactions. a. When heated‚ solid calcium reacts
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types of sparks. In flame compositions‚ such as the stars that shoot out of rockets‚ potassium nitrate‚ salts of antimony‚ and sulfur maybe be used. For colored fire‚ potassium chlorate or potassium perchlorate is combined with a metal salt that determines the color. Inside each firework are small packets filled with chemicals‚ mainly metal salts and metal oxides‚ which react to produce an array of colors. When heated‚ the atoms of each element in the mix absorb energy causing its electrons to
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made mainly of calcium carbonate (CaCo3) Some types of limestone are made of the remains of tiny animals and plants which lived in the sea millions of years ago We dig limestone out of the ground in quarries Its main use is as a building material/ in the manufacture of iron Powdered limestone + high temperature+ sand+ sodium carbonate= glass powdered limestone + powdered clay + heat= cement cement powder + water + sand +gravel= concrete Limestone + strong heating= quicklime (calcium oxide) + carbon
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has a huge effect on calcium carbonate concentrations in ocean water. An increased concentration of CO₂ in the air then causes an increase in calcium carbonate levels in water. CO₂ is highly soluble in water‚ especially mineral water (“When Carbonate”). When carbon dioxide reacts with water it forms carbonic acid. CO₂ + H₂O ↔ H₂CO₃ This product can then go on to react and produce hydrogen ions and bicarbonate. H₂CO₃ ↔ H⁺ + HCO₃⁻ Bicarbonate is also a product of carbonate ions reacting with
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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 decompose into two gases‚ due to the absence of anything solid or liquid following the reaction. A wood splint was used to determine that carbon dioxide was present‚ since the lit splint was extinguished when put in the test tube. Therefore‚ the other product is ammonium oxide. The fourth reaction occurred between calcium carbonate and hydrochloric
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| | | 10/3/2012 | | Aim: To determine the different types of hardness and alkalinity found in the water by titration methods. This is used to calculate the concentrations of calcium and magnesium found in the water. Principles: The hardness of water is determined to provide a measure of the quality of water for household and industrial use. Hard water is not a health hazard. Drinking hard water contributes a small amount of calcium and magnesium towards humans dietary needs.
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KOMIQUINDOX (ANTIBIOTIC FEED ADDITIVE & GROWTH PROMOTER) Composition: Olaquindox………………10% Calcium Carbonate……………………30% Dextrose……………QS * Antibiotic feed grade with antibacterial activity. * For better health & growth in broiler. * Treat diarrhea in poultry & livestock. * Prevent bacterial‚ fungal & viral infection. * Give better egg production in breeder & layer. * Improves egg shell weight‚ size & internal contents in layer & breeder. * Excellent source
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PRINCIPLES OF CHEMISTRY LAB I Experiment 2 Separation Of Mixtures INTRODUCTION A mixture can simply be defined as a substance that is made up or consists of two or more elements and/or compounds that are physically combined but that have not reacted chemically to form new substances. A mixture may be a solid‚ liquid‚ gas‚ or some combination of those states. Mixtures can be found almost every wher in our everyday lifes and some common examples are * sand and water * salt and water
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Reaction Types In this lab we were give 9 different elements and had to determine if they were Single Displacement‚ Double Displacement‚ Synthesis‚ Decomposition and Combustion. A.) Aluminum and Copper (II) Chloride‚ my hypothesis is a Single Displacement. B.) Calcium Carbide and Water‚ my hypothesis is a Double Displacement. C.) Zinc and Hydrochloric Acid‚ my hypothesis is a Single Displacement. D.) Alcohol and Oxygen‚ my hypothesis is a Combustion. E.) Lead (II) Nitrate and Potassium Iodide
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