A simplest definition of a recirculating aquaculture system would be: “Recirculating aquaculture encompasses systems used for the rearing of aquatic organisms where 90% or more of system water is recycled.” Why Recirculating Aquaculture? Low water Requirements * consume considerable less water than other types of culture systems * Suited to areas with limited water supplies. * Requires a minimum daily input of water‚ just enough to clean the waste from the filters and to replace water
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Nitric Acid Nitric acid is an acid many people have come across in life. One may have felt nitric acid when touching fertilizers‚ or using dyes. Nitric acid appears in substances we never thing it would be used in. In fact‚ small contents of nitric is acid is found in raindrops that fall from the sky. Nitric acid‚ or known as NHO3aq is an acid formed from reaction of ammonia and oxygen. Nitric acid is a colourless acid when it’s pure‚ or can be found yellow or red. This acid can be very corrosive
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are to be written in and be in correct scientific notation. Box your final answer. Mass/Mole Problems 1. Determine the molar masses of the following compounds: a. dinitrogen pentoxide c. sodium carbonate b. ammonium phosphate 2. Calculate the number of atoms in 20.0 grams of calcium. Road map: grams ( mols( atoms 20.0 g Ca x 1 mol Ca x 6.02 x 1023 atoms Ca 1 40.01
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injuries to hundreds more. The bomb was made up of a deadly and potent cocktail of two and a half tons of ammonium nitrate ‚ 4800 pounds of a common farm fertilizer‚ and fuel oil then was packed inside the rented truck. The most terrifying thing about the making of this bomb was that its ingredients were cheap and very accessible to the public. Most gardening stores sell 50 pound bags of ammonium nitrate for $10. The substantial destruction from the bomb was luck more than anything. Former FBI bomb expert
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Confirmatory Tests for Cations & Anions prepared by alex teoh / Update: 29 Dec 2004-2205 h / 1st pub: 7 Sep 2001 @ CHIJ-St Joseph’s Convent Test for CATions * All cations must be present in aqueous states before tests can be conducted.. CATion ammonium zinc Reaction with aqueous Sodium Hydroxide NO ppt. Ammonia gas produced on warming. White ppt. [y] Soluble in excess aq. NaOH to form a colorless solution. [z] Zn2+ + 2OH- Zn(OH)2 (white ppt) Zn(OH)2 + 2OH- [Zn(OH)4]2- (aq) White ppt. [u]
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Weapons of Mass Destruction There are several schools of thought in regards to what defines a Weapon of Mass Destruction (WMD). According to Christopher (2014)‚ WMDs are destructive devices that may be explosive‚ incendiary‚ or poisonous. Any weapon involving a disease or any weapon designed to release radiation or radioactivity at a level dangerous to human life is also considered a WMD. (p. 59). This‚ as you could imagine is a major security challenge for port maritime operations due to the amount
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to the flask‚ sulfuric acid‚ 2-butanol‚ and ammonium bromide. Heat to 95OC and then maintain temperature for 30 minutes. Then‚ water was added and simple distillation began. The aqueous layer of the distillate was removed leaving the product‚ 2-bromobutane. For part 2‚ two drops of each of the following were placed in 3 different test tubes: 2-bromobutane‚ 1-bromoutane and 2-bromo-2-methylpropane. In each of the tubes an even amount of silver nitrate is added. Observations of the reactions precipitate
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total hardness of ilara mokin water to show the usefulness of hard water in industries‚ environmental and social links. INTRODUCTION: WHAT IS HARDNESS OF WATER: It is when water passes through or over deposit such as limestone; the level of Ca²⁻and Mg²⁺and HCO₃ ions present in the water can greatly increase and cause the water to be classified as hard water. This term results from the fact that cation and magnesium ions in water combine with soap molecules‚ making it hard
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metabolic pathways‚ each was used in a way to help recognize those specifics and identify the unknown cultures. The differential tests used to identify the unknown cultures were oxidase‚ catalase‚ lactose and sucrose fermentation‚ Kugler/iron agar‚ nitrate reduction‚ gelatin hydrolysis‚ starch hydrolysis‚ manitol salt‚ MR-VP‚ citrate‚ bile esculin‚ indole‚ urease‚ DNase‚ and coagulase. Material & Methods The tests performed on the unknown bacteria cultures were all used to determine the identity
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IGCSE Complete Chemistry Notes Unit 1: States of matter Everything is made of particles. Particles in solid are not free to move around. Liquids and gases can. As particles move they collide with each other and bounce off in all directions. This is called random motion. In 2 substances‚ when mixed‚ particles bounce off in all directions when they collide. This mixing process is called diffusion. It’s also the movement of particles without a force. The smallest particle
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