nitrate‚ Zn(NO3)2 into well A3 of the 24-well plate. 4. Place 10 drops of Iron (III) chloride‚ FeCl3 into well A4 of the 24-well plate. 5. Place 10 drops of Copper (II) sulfate‚ Cu SO4 into well A5 of the 24-well plate. 6. Take the metal solids from your LabPaq; there should be one piece each of magnesium‚ zinc‚ and iron plus two pieces of lead. Note: Magnesium and lead oxidize very easily and an almost invisible oxidation layer may coat the metal. To insure good reactions you should scrape the
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Physical and Chemical Properties Peter Jeschofnig‚ Ph.D. Version 42-0188-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that
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cesium are generally very soluble. C. Ammonium salts: Almost all ammonium salts are soluble. D. Sulfates: The sulfates of most common elements are soluble‚ except those of calcium‚ strontium‚ barium‚ and lead (II) ions. © 2010 Hands On Labs‚ Inc. LabPaq CK-1 103 E. Hydroxides: Most of the hydroxides are insoluble‚ except those of the alkali metals and barium; calcium hydroxide is moderately soluble. F. Halides: The chloride‚ bromide‚ and iodide salts are generally soluble‚ except those of silver
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Which level of meniscus would you record to get the correct volume of water from measuring devices? -Meniscus is a measurement used for measuring liquids‚ for water and most liquids the line with the center of the meniscus reading in the bottom is used. 6. How would you clean the lab after completion? - Items in labpaq are generally used multiple times. Always clean and return un used items to the bag after completing experiment. -Clean used and left over
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Physical and chemical ProPerties Physical and Chemical Properties Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Substance Name Mg Cu Zn
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and products of the reaction‚ to determine the actual yield vs. the theoretical yield and to calculate the percent yield. A Precipitation reaction begins by combining two aqueous solutions to form a precipitate‚ an insoluble product that is also a solid. With my knowledge of the measuring scale‚ I was able to use the scale with no problem throughout the whole experiment. The mass of the weighing dish was 0.5 grams. Initially it was calculated that 0.68 g of CaCO3 was needed for a full reaction
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necessarily involves change. All children and young people will experience some changes in their daily lives as mentioned before part of growing up. Some changes can be foreseen or even planned. These transitions are: - birth itself - from milk to solids - from crawling to walking - from being feed to feeding ourselfs - from nappies to being trained - from self aware to mind reading and recognizing somebody else needs - from playing alongside to play with another children - from one school
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parted stiff and dry" The persona agrees to allow seperation to come between him and his subject- seperation in the form of ‘the world’‚ which suggests that worldly occurences‚ such as time and society’s view on homosexuality‚ has parted the two. Furthermore‚ later on the poem‚ with the allusions to death and related death imagery‚ the persona suggests that time‚ and the death which only time can bring‚ will signal the final act of seperation between the persona and his subject. Death Imagery
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control based on everything from geographic limitations and cultural reasons. Many factors were present affecting differences and similarities between the two. For starters‚ unity was difficult in india because of its geography that created sort of a seperation. however‚ the geography made it more open to outer influences like the Aryans. rome was more or less unified geographically‚ as it had many rolling hills instead of mountain ranges in parts of india. The speration in india resulted in many things
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10. Corrosive liquids have a high potential of cause _____ injury to the body (a) internal (b) external (c) systemic 11. Corrosive gases have a high potential to cause____ injury to the body (a) internal (b) external (c) systemic 12. Flammabe chemical could ____ (a) gases (b) liquid (c) solids (d) all of the above. 13. For a fire to occur‚ there must be ____ (a) Oxygen (b) combustion (c) inflammable substance. 14. The lowest temperature at which a liquid has sufficient vapour
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