it had a high melting point but also low solubility in water. I think substance 3 is an ionic compound because it had a high melting point and solubility in water. Substance 4 may be a metallic compound because it has a low melting point. Substance 5 might be an
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Question 1 Electromagnetic radiation behaves both as particles (called photons) and as waves. Wavelength () and frequency () are related according to the equation where is the speed of light (). The energy ( in joules) contained in one quantum of electromagnetic radiation is described by the equation where is Planck’s constant (). Note that frequency has units of inverse seconds ()‚ which are more commonly expressed as hertz (). Part A A microwave oven operates at 2.40 . What is the wavelength
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The vocabulary words I chose are plummeted which means to fall or drop straight down and persuasive who is someone that is good at making another believe something through reasoning or the use of temptation. Both of these words apply to this chapter and throughout David and Goliath because all underdogs must use persuasion in order to challenge larger powers they are facing and if the strategy or method used by an underdog is not constantly assessed in comparison to the U-curve‚ then ultimately failure
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(proton)‚ and a base is a species with the ability to gain or "accept" a hydrogen ion (proton). acid salt: NaHSO4 & H2O => Na+ & H3O+ & SO4-2 basic salt: Na2CO3 & H2O => 2Na+ & (HCO3)-1 & OH- neutral salt: NaCl & H2O => Na+ & Cl- & H2O Module 5- Buffers 15. An acid contributes a surplus of hydrogen ions to a solution. A base contributes a surplus of hydroxide (OH) ions to a solution. 16. Buffer solutions are solutions that resist change in Hydronium ion and the hydroxide ion concentration
Free PH Acid dissociation constant Acid
CHAPTER 5 Merchandising Operations ASSIGNMENT CLASSIFICATION TABLE | | | | |Brief | | | |A | |B | |Study Objectives | |Questions | |Exercises | |Exercises | |Problems | |Problems | | | | | | | | | |
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← Understand the manufacture of sulphuric acid. ← Synthesise the manufacture of ammonia and its salts. ← Understand alloys. ← Evaluate the uses of synthetic polymer. ← Apply the uses of glass and ceramics. ← Evaluate the uses of composite materials. ← Appreciate various synthetic industrial materiala. (H4SO4) ← USES OF SULPHURIC ACID 1. Sulphuric acid is used to produce chemical fertilizer such as ammonium sulphate and potassium sulphate‚ which are highly soluble in water
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Effective Vocabulary Teaching Strategies For The English For Academic Purposes Esl Classroom. ABSTRACT Vocabulary learning is an important and indispensable part of any language learning process. This study focuses on effective vocabulary teaching strategies in the English for Academic Purposes ESL classroom. Drawing on findings obtained from observing three English for Academic Purposes ESL classrooms across Bekaa‚ several current databases and my personal experience as a teacher and learner
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electrode ‘A’ is connected to the positive terminal of a battery and electrode ‘B’ to the negative terminal. (i) Give the names of the electrodes A & B. (ii) Which electrode is the oxidizing electrode. Ans : - (i) A – Anode‚ B – Cathode. (ii) A. Q. 5. State the appropriate term used for : – A liquid or solution‚ which conducts electricity with accompanying chemical change. Ans.: - Electrolytes. Q.6. Electrons are getting added to an element Y. (i) Is Y getting oxidized or reduced? (ii) What
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Biology I Chapter 5 Membranes LearnSmartThe lipid bilayer of cell membranes acts as a barrier to the free movement of substances that are Hydrophilic Water soluble True or False: In order to survive‚ grow and reproduce‚ a cell must continually exchange materials and information with its environment. True Unlike prokaryotic cells‚ eukaryotic cells have internal membranes‚ which surround their organelles. Which structure surrounds all cells? Plasma membrane A defining feature of biological
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Yksi – One Syylä – Wart Vesi –Water Valmis – Ready Sinä – You Kissa – Cat Tansania – Tanzania Katto – Roof *** F is rarely seen in Finnish *** Faarao – Farao Taffel – Taffel *** G is usually with an n‚ making “ng” *** Gaala – Gala Viikingit – the Vikings Pieni – Small Pippuri – Pepper Lapsi – Child Halla – Frost Iso – Big iilimato – Leech Äiti – Mother Ääni – Sound *** C almost never occurs in Finnish *** Celsius – Celsius Jalka – Foot Ajoissa – on time *** The letter
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