the formation of silver metal will be used to write the balanced equation for the reaction. The reaction of copper metal with silver nitrate solution is a single replacement reaction‚ represented by the following unbalanced equation: Cu(s) + AgNO3(aq) → Cu(NO3)2(aq) + Ag(s) The values of the coefficients can be determined experimentally by measuring the mass of copper wire that reacts with the mass of silver that is produced in the above reaction. BACKGROUND MATERIALS NEEDED The reaction
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ABSTRACT ------------------------------------------------- Food contains nutrients that are very significant to the body. The basic essential nutrients‚ vitamins‚ and minerals play very significant functions in the different metabolic processes. In order for the nutrients to be known‚ several tests were performed to qualitatively analyze nutrients for the different food samples. Reagents were used as indicators to test common food substances for the presence of specific nutrients. Fruit juice
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Angewandte Chemie Photocatalyis with Visible Light Photocatalytic Nanodiodes for Visible-Light Photocatalysis** Hyun G. Kim‚ Pramod H. Borse‚ Wonyong Choi‚ and Jae S. Lee* Photocatalysts that respond to visible light (l < 400 nm) are needed to utilize the main part of the solar spectrum for production of hydrogen energy by splitting water‚[1‚ 2] purification of water and air‚[3] and other applications.[4] Traditional visible-light photocatalysts are either unstable upon illumination
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The goal for our lab activity was to make a silver mirror by reducing silver ions with dextrose. The materials that we used were acetone‚ 5 mL of 1.5 M ammonium nitrate solution (NH4NO3)‚ 5 mL of 0.5 silver nitrate solution (AgNO3)‚ 10 mL of 5% dextrose solution (C6H12O6)‚ 10mL of 10% sodium hydroxide solution (NaOH)‚ a 50 mL beaker‚ a 250 mL Florence flask with a rubber stopper‚ a 10 mL graduated cylinder‚ a waste beaker‚ and distilled water. The first thing we did was rinsed the beaker‚ cylinder
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Ratio of Mole of Reactants in a Chemical Reaction Purpose of Lab: To find the coefficients of two chemical reactants that appears in a balanced chemical equation using the continuous variations method. Pre Lab Questions: 1. 2AgNO3(aq) + K2CrO4(aq) → 2KNO3(aq) + Ag2CrO4(s) 2. There is enough to make a valid conclusion because‚ on the graph‚ one can clearly see that the two lines intersect. Thus‚ one can also determine the mole ratio. The mole ratio is approximately 2:1 (AgNO₃ to K₂Cr₄)
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cloudy but clear. I now have the expectation that when phenolphthalein is mixed with an acid‚ the mixture will remain somewhat clear‚ and when it’s mixed with a base it will turn a dark pink color. J. NaOH + AgNO3 C5 The reaction turned a thick brown color – almost like chocolate milk. K. AgNO3 + NH3 E5 The reaction was clear. after exposure to bright light I sat this outside to get direct sunlight. It turned dark brown and it looked as though the silver nitrate and ammonia separated on the
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Experiment In this lab we were asked to observe changes and colors when mixing two or three chemicals together. The actual experiment itself used twelve different pipits and three chemicals I selected from my house. To begin‚ I first gathered everything‚ including the 96 well plate‚ 24 well plate‚ goggles‚ and gloves along with the observations of chemical changes bag. I set it up all on the the kitchen table that had paper towels on it. Next‚ I made my data table so that I could record my reactions
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Purpose: The purpose of this experiment is to identify some commonly occurring anions & to study some of the reactions used for their identification. Materials: 1 Household Bleach‚ 2 mL 1 Distilled water 1 Toothpicks 2 Beaker‚ 50 mL‚ plastic 1 Cylinder-25-mL 1 Pencil‚ marking 1 Test Tube (5)‚ 13 x 100 mm in Bubble Bag 1 Well-Plate-24 1 Ammonium Molybdate‚ 0.2 M - 2 mL in Pipet 1 Aqueous Ammonia‚ 6 M‚ NH4OH - 4 mL in Pipet 1 Barium Chloride‚ 0.3 M - 2 mL in Pipet 1 Hydrochloric Acid‚ 6 M - 8 mL
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Hydrogen sulphide gas burns in air to give water and sulphurdioxide. (3) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. (3) 12. Balance the equations (1) HNO3 + Ca (OH ) 2 → Ca ( NO3 ) 2 + H 2O (2) NaCl + AgNO3 → AgCl + NaNO3 (3) BaCl2 + H 2 SO4 →
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Chemistry Midterm Exam Answer each question below. Make sure to show your work on any math problem. 1. Write the formula for mercury(II) chloride. HgCl2 2. Arrange the following elements in order of decreasing atomic size: Li‚ C‚ K‚ F‚ Cs Cs>K>F>C>Li 3. Ammonia‚ NH3‚ is a typical ingredient in household cleaners. It is produced through a combination reaction involving N2(g) and H2(g). If 24.0 mol of H2(g) react with excess N2(g)‚ how many moles of ammonia
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