Class 10th Science Syllabus COURSE STRUCTURE CLASS X First Term: Marks: 90 Units Marks I. Chemical Substances: 33 II. World of living : 21 III. Effects of Current : 29 IV Natural Resources : 07 Total :90 Theme: Materials (30 Periods) Unit: Chemical Substances - Nature and Behavior Chemical reactions: Chemical Equation‚ Balanced chemical equation‚ implications of a balanced chemical equation‚ types of chemical reactions: Combinations‚ decomposition
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Chemistry Salt Analysis Cheatsheet Version 2.0 © 2008 Ankur Banerjee All Rights Reserved. Only important stuff for CBSE Class 12th Chemistry practical syllabus has been included‚ not everything. 2. WE + acidified K2Cr2O7 2 = sol 3 turns green 3. WE + acidified KMnO4 = pink colour of KMnO4 is discharged 4. Sulphide: Colourless gas with a smell of rotten eggs (H2S); turns lead acetate paper black 1. Sodium nitroprusside test: WE + sodium nitroprusside 4 = purple / violet colour 2. Lead acetate
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1) Demonstrate understanding of the terms atom and molecule. Atom= Smallest Unit of Matter Molecule= 2 or more atoms chemically bonded. 2) Describe paper chromatography. 3) Interpret simple chromatograms. A method used to separate a Solution‚ using a Paper and a beaker of water. The Substances in the Paper go up depending on their Mass. We can say that a Solution has the same substance as another solution because they form a line of the same height. 4) Describe methods of separation
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SO4 = no change indicating no reaction took place‚ confirming that sulphate is not present in solution. Unknown Substance: When testing for carbonates‚ little to no reaction took place indicating no presence of carbonates. While testing for Chloride and Iodide‚ my solution reacted with sulphric acid and a yellow-ish colour change took place. No reaction took place when added to hydrochloric acid or barium hydroxide. Sulphate was tested for and no reactions or changed underwent‚ confirming
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1. Make Your Agriculture Healthier and Wealthier Under the headquarters of Melbourne‚ there is an Organization for fertilizers called Ameropa Australia‚ which is derived from two organizations under the single ownership called impact fertilizers and brown fertilizers established at 1st Jan of 2016. Mr. Jim Mole is the Ameropa Australia’s CEO. This does not make any changes in ownership‚ but one can expect see some simple changes in structure of impact fertilizers and brown fertilizers and change
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juice. Aim: The aim of this investigation is to produce a set of data which will enable comparison of the glucose concentrations of orange‚ lemon and grapefruit juice. Research: Benedict’s Reagent is a mixture of sodium compounds and copper sulphate. The copper ions are reduced by fructose (a reducing sugar) to form copper oxide‚ thus turning it from blue to a brick red/orange precipitate. The more red the precipitate is‚ the higher the concentration of reducing sugar in the solution tested
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concentration of the solution formed when 23.61 g of sodium phosphate is dissolved in 475.0 cm3 of water. 2. What volume of water is needed to dissolve 85.8 g of silver nitrate to make a 2.650 M solution? 3. What mass of magnesium sulphate is needed to make 1500 mL of a 2.45 M MgSO4 solution? 4. Calculate the concentration of the solution formed when 59.78 g of ammonium hydroxide is dissolved in 856.0 cm3 of water. 5. What volume of water is needed to dissolve 150.8 g of
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Abstract Human influences and pressure is triggering a range of environmental changes. These changes on the geography of the Earth within such a small time frame are unheard of‚ and may be irreversible. Climate change has a wide range of adverse effects on the natural world and manmade systems. The main concerns are the risks posed on the Earths geophysical and ecological processes. Many causes influence climate change with the main cause being increased atmospheric greenhouse gases. Other major
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Aim: To compare the foaming capacities of five different commercial soaps. Apparatus: 5 test tubes‚ 5 conical flasks (100 ml)‚ test tube stand‚ Bunsen burner and stop watch. Materials Required: 5 different samples of soap and distilled water Theory: The foaming capacity of a soap sample depends upon the nature of soap and its concentration. This can be compared for various samples of soaps by taking the same concentration of solution and shaking them.The foam is formed and the time taken
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“An Essay Explaining the Biochemical Processes that Occur During Decomposition in the Soil Using Organisms such as Bacteria‚ Fungi and Algae. It also Involves an Analysis of the Chemical Reactions Facilitated‚ Processes Involved‚ Mineralization and the Role(s) of Organic and Inorganic Compounds.” by Alicea Bigby-Smart ID #: 12480025 Montego Bay Community College Submitted in Partial Fulfillment of the Requirements of the Council of Community
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