paper to remove this layer so that the underlying metal can be exposed into air. Question 2: Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen Answer (i) (ii) (iii) Question 3: Write a balanced chemical equation with state symbols for the following reactions. (i) Solutions of barium chloride and sodium sulphate
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Table of Contents 1.0 Introduction As mentioned by re-store.org (n.d) Recycled Art is art that has been created from found‚ salvaged‚ scavenged‚ and repurposed materials. The art can take the form of 2-dimensional‚ 3-dimensional‚ fashion design and accessories‚ interactive‚ mechanical‚ electronic‚ kinetic and multimedia works. Cast-off materials are very abundant in the American landscape‚ giving artists and designers a wide array of possibilities. The RE Store‚ bringing Recycled Art
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This symbol reminds those handling the package to keep out of the rain and not to store it in damp conditions. It is normally found on card based packages which would be damaged if placed in contact with water. The broken wine glass suggests that the product inside the packaging could be easily damaged if dropped or handled without care and attention. The contents are fragile! The two hands holding or protecting the package is another reminder that the contents should be handled with care
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company law. FACTS BALCO (M/s. Bharat Aluminium Company Limited) was incorporated in 1965 as a Government of India Undertaking under the Companies Act‚ 1956. It had a paid-up share capital of Rs. 488.85 crores. The company was engaged in the manufacture of aluminum and had plants at Korba in the State of Chhatisgarh and Bidhanbag in the State of West Bengal. The Company had integrated aluminium manufacturing plant for the manufacture and sale of aluminium metal including wire rods and semi fabricated
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Reddish-Brown ppt. Insoluble in excess aqueous ammonia. calcium aluminium lead(II) copper (II) Blue ppt. [g] Insoluble in excess aq. NaOH. Cu2+ + 2OH- Cu(OH)2 (blue ppt) Dark green ppt. [h] Insoluble in excess aq. NaOH. Fe2+ + 2OH- Fe(OH)2 (dark green ppt) Reddish-Brown ppt. [k] Insoluble in excess aq. NaOH. Fe3+ + 3OH- Fe(OH)3 (red brown ppt) iron (II) iron(III) NOTE: The observations for both lead(II) and aluminium ions are similar. To distinguish them‚ add aqueous potassium iodide
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Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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EMD112 CONCEPTUAL DESIGN AND CAD WALKING STICK WITH SEAT AND UMBRELLA 2.0 Abstract Some people use walking stick to assist them when walking because their leg is not strong enough to support their body weight or they’ve injured their leg. They will feel tired easily when walking with the assistance of walking stick due to the need of synchronization between their hand which hold the stick and their legs. Therefore‚ they will need to sit down and rest before they continue walking
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loosely‚ and connect the rubber hose to its spout. Heat with a Bunsen burner. First‚ measure the length‚ L‚ of the rod using a meter stick and make an estimate of the uncertainty in the length and call this number all. Next‚ insert the rod into the aluminium jacket and put it in place on the supporting apparatus. It is very important that the rod is properly placed. One end must be firmly pressed against the screw protruding from the supporting apparatus‚ while the
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skin blemish! A Chemical Mole is a clever way to measure quantities; essential for analysis & chemical manufacture. Electrically powered smelter plant for extracting Aluminium from its ore If you know the mass‚ you can figure out how many atoms there are... thanks to the mole. Photo courtesy of Comalco Aluminium Ltd Preliminary Chemistry Topic
Free Periodic table Chemical element Atom
| | |Place an equal quantity of dead or non-living material in B. | | |Cover the mouth of each tube with a piece of aluminium foil. Press firmly into place round the rim| | |of the tube. | | |Leave
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