of your house‚ draw chalk lines around your doorways and windowsills. Ants won’t cross a chalk line. Why? It’s not entirely clear‚ but some say the ants don’t like the particles sticking to their feet‚ while others say they’re averse to the calcium carbonate in the chalk. Whatever the reason‚ this nontoxic solution will keep ants outside where they belong. According to Leven Flickety(2006) There are two types of chalk paint: the first is paint made out of pieces of chalk‚ and the second is a type
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GCSE Sciences Guidance on Controlled Assessment GCSE Sciences Guidance on Controlled Assessment for teaching from September 2011 onwards ( version 1.0 ) Contents Introduction to Controlled Assessment Step-by-step Guide for n 01 04 n Science A n Additional Science n Biology Chemistry n Physics Controlled Assessment in Detail n■ n■ n■ n■ n■ n■ 11 Step 1 – Planning Step 2 – Reporting on the planning and research Step 3 – Practical work Step 4 – Processing
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aluminum ions to nitrate ions is (1) 1:1 (2) 1:2 (3) 1:3 (4) 1:6 19. What is the total number of atoms in (NH4)2SO4? (1) 10 (2) 11 (3) 14 (4) 15 22. Write the correct formula for the following binary ionic compounds. (a) Lithium fluoride LiF (b) Calcium oxide CaO (c) Aluminum nitride AlN (d) Beryllium chloride BeCl2 (e) Potassium iodide KI (f) Aluminum oxide Al2O3 23. Write the correct formula for the following binary molecular compounds. (a) Carbon monoxide CO (b) Boron tribromide
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1. In the first group of four reactions‚ Iron phosphate and calcium phosphate are the two products that are insoluble in water. In the three of the four reactions a cloudy white or yellow formed. This indicated the formation of a precipitate‚ caused by the generally insoluble phosphate anion. Potassium chloride‚ Iron nitrate‚ and potassium sulfate where the products which were soluble in water. With these products there was no evidence of a precipitate forming. 2. Based on the results from reactions
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output at rest and during exercise Hypersensitivity‚ dizziness‚ fatigue‚ insomnia‚ mental depression‚ shortness of breath Amlodipine 10MG Q8 (IV times) Calcium channel blocker: Antihypertensive Calcium channel blocking agent that selectively blocks calcium influx across cell membrane of cardiac and vascular smooth muscle without changing serum calcium concentrations Flushing tachycardia‚ nausea‚ fatigue‚ headache‚ postural hypotension Atorvastatin Antilipemic; Statin
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water is forced into the spongocoel and out of the body. Propsopyles- The pores which allows water to enter into the radial canals which are lined with choanocytes for food ingestion. Spicules- small needle like structure made of silicate or calcium carbonate‚ used for supporting the soft tissue in sponges. 6. Define the following pinacocytes‚ choanocytes‚ archaeocytes‚ sclerocytes‚ spongocytes‚ collncytes. Pinacocytes- they are thin flat‚ epithelial like cells that cover the exterior surface and
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Chemistry 108/lab Section C2A Fall 2014 Amee Karelia Date of experiment: 9/16/2014 Date of submission: 9/23/2014 Experiment # 3 Purpose: the purpose of this experiment was to explore the distinctions between physical and chemical properties and between physical and chemical changes. Lab questions: 1. Based on my observation CaCl2 is soluble in water. 2. When 15% of HCl was added to CaCl2 as the teacher was performing the experiment I observed and realized some changes took place physically
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Contents 1) Sulphuric Acid----------------------------------------------------------------(1-6) a. Uses of sulphuric b. Manufacture of sulphuric acid c. Sulphur dioxide and environmental pollution 2) Ammonia and Its Salt-----------------------------------------------------(7-10) d. Uses of ammonia e. The properties of ammonia f. Manufacture of ammonia g. Preparation of ammonium fertilisers 3) Alloys------------------------------------------------------------------------(11-14)
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ASSIGNMENT on GEO-SEQUESTRATION M.Sc.(tech.) Environmental Science & Technology (CEST) RAJIV GANDHI SOUTH CAMPUS BARKACHHA MIRZAPUR BANARAS HINDU UNIVERSITY SUPERVISED BY: VIJAYKRISHNA SIR SUBMITTED BY: KAUSHIK KUMAR M.Sc.(tech.) 3rd SEM. CONTENT: 1. Introduction 2. Need for Geo-sequestration 3. CO2 Capture Methods 3.1 Post combustion process 3.2 Pre combustion process 3.3 Oxy-Fuel method 4. CO2 transport 5. CO2 storage 5.1 Geological storage 5.2 Ocean Storage 5.3 Mineral storage 6
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ochre (hematite) with different tonalities‚ yellow ochre (goethite)‚ green earth and carbon black from vegetable origin. A high quantity of TiO2 anatase phase was found in the red pigment samples. The analyses showed the continuous presence of calcium carbonate (calcite polymorph) in the underlying layers accomplished with the absence of organic materials confirm the use of fresco technique. Keywords: Christian Frescoes‚ Kharga Oasis‚ Egypt‚ Micro-Raman INTRODUCTION The early Christian necropolis
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