The affect of temperature on the rate of movement of woodlice Aim: The aim of this experiment is to establish whether a change in temperature affects the rate in which woodlouse move. I measured the rate by timing the woodlouse to move a set distance of 20cm‚ and altered the surrounding temperature by submerging a clear tube in water with different temperatures controlled by a water bath. Research: It is to be believed there over 3000 different species of woodlice‚ a total of 42 species
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Magnetic materials refer primarily to the materials with direct or indirect magnetism composed of transition elements like ferrum‚ cobalt‚ nickel and their alloys. Magnetic materials find application in wind power‚ electronics‚ computer‚ communication‚ medical treatment‚ household appliances and military fields. By quality and structure‚ magnetic materials can be classified into ferrite magnetic materials‚ rare earth magnetic materials‚ and others. In 2012‚ the number of flexible ferrite magnet
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Common Elements/Uses Element Common Uses &/or Descriptions Aluminum A light metal used in making airplanes‚ buildings‚ pots and pans‚ etc. Bromine Used in photography‚ medicines‚ insecticides‚ etc. Calcium A soft‚ metallic chemical element found in limestone‚ marble‚ chalk‚ etc. Carbon Found in coal‚ oil‚ gas‚ living things‚ and inks. Chlorine Used in bleach‚ in chemical to kill germs in swimming pools‚ and found with the element sodium in table salt. Chromium A shiny metal usde on bumpers
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it touches them. Rinse any spills well with copious amounts of water. Also‚ most of these chemicals are toxic by ingestion. So remember‚ no food or drinks in the lab! 1. All reactions will be performed in the 96-well plate. a. Place 2 drops of cobalt (II) nitrate solution into seven of the A row wells. b. Place 2 drops of copper (II) nitrate into seven of the B wells. c. Place 2 drops of iron (III) nitrate into seven of the C wells. d. Place 2 drops of barium nitrate into seven of the D wells
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CHAPTER-23 HW. Rahaf AlBathi 121114 Question 1 The electron configuration of a Ni2+ ion is: | A) [Ar]4s23d8 | | B) [Ar]4s23d6 | | C) [Ar]3d8 | | D) [Ar]3d6 | Question 2 The Fe3+ ion has _____ electrons in 3d orbitals. | A) 6 | | B) 5 | | C) 4 | | D) 3 | | E) 2 | Question 3 A ligand is: | A) a molecule or ion that has at least one lone pair of electrons | | B) a nucleophile | | C) a Lewis base | | D) part of a coordination compound |
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speakers. • Useful in experiment with diamagnetic levitation. • Helpful in the study of magnetic field dynamics. • They are also studied for superconductor levitation. Alnico Magnets: Alnico is an alloy produced by mixing aluminum‚ nickel and cobalt with certain addition of other metals like copper‚ iron and titanium. Capable of producing strong magnetic field‚ it has an excellent linear temperature characteristics and has wide industrial applications Types of Alnico Magnets On the basis
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E. E. Cummings‚ an author known for his various poems and other forms of artwork‚ wrote numerous works of poetry over a vast amount of subjects. While the subject matter of the poems differ‚ a few elements of Cummings’ style stays the same in virtually all his poems‚ some of which is important and some of which is not. The fact that Cummings uses enjambment in his poetry is a stylistic trademark that however annoying its use may be is consistent. Other stylistic trademarks of Cummings’ poetry are
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Involving Thiocyanatoiron (III) Ion REAGENT ADDED STRESS (ION ADDED) OBERSERVATION DIRECRTION OF EQUILIBRIUM SHIFT KCl (test tube B) Fe(NO3)3 (test tube C) KSCN (test tube D) NaOH (test tube E) Table 3 Equilibrium Involving Cobalt (II) Complexes STRESS OBSERVATION DIRECTION OF EQUILIBRIUM SHIFT Step 3 Step 4 Step 5 Table 4 Equilibrium Involving Chromate and Dichromate Ions Steps 2 and 3 0.1 M K2CrO4 0.1 M K2Cr2O7 Initial Color 1 M NaOH added
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Preservation of Food with Ionizing Energy Lesson 10 1 Assigned Readings – n Smith‚ J.S. and Pillai‚ S. 2004. Irradiation and Food safety. Food Technol. n Fact sheet on Food Irradiation http://www.inspection.gc.ca/food/information-for-consumers/fact-sheets/labelling-food-packaging-and-storage/irradiation/eng/1332358607968/1332358680017 n Frequently Asked Questions regarding Food Irradiation 2 Terminology n Radiation ¨ ¨ n Food irradiation ¨ n Rays of energy Emission and propagation of
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1) What is the purpose of ice or cold water? To cool down the gas so that it condenses and turns into a liquid. 2) when the gas collecting tube is upside down‚ give a property of this gas. It is less dense than air. 3) Why is a pencil used in drawing the origin line in chromatography? If pen was used‚ it will dissolve giving colours and so‚ the experiment won’t be accurate. Pencil doesn’t interfere with the results. 4) When using ethanol‚ give a better apparatus arrangement‚ and why? Cover
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