Candidate name…………………………………………………………………….. MINISTRY OF EDUCATION MASALA SECONDARY SCHOOL BOARD MOCK EXAMINATION 2014 SCIENCE 5124/3 PAPER 3 (CHEMISTRY) 1hour 15minutes Additional materials: Monday 30th July 2014. Answer paper INSTRUCTIONS TO CANDIDATES Write your name‚ centre number and candidate number at the top of this page all separate Attempt all questions in SECTION A and only TWO questions in SECTION B SECTION A (45 marks)
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together and observing changes that occurred. PROCEDURE: 1 Cotton Swabs‚ 1 Sheet each of white and black paper‚ 1 Distilled water‚ Goggles-Safety‚ 1 Well-Plate-24‚1 Well-Plate-96‚ Bag-CK1 1 Pipet‚ Empty Short Stem‚ Experiment Bag Ionic Reactions 1 Barium Nitrate‚ 0.1 M - 2 mL in Pipet‚ 1 Cobalt (II) Nitrate‚ 0.1 M - 2 mL in Pipet1 Copper (II) Nitrate‚ 0.1 M - 2 mL in Pipet‚ 1 Iron (III) Nitrate‚ 0.1 M - 2.5 mL in Pipet‚ 1 Nickel (II) Nitrate‚ 0.1 M - 2 mL in Pipet‚ 1 Sodium Bicarbonate‚ 0.1 M - 2
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these changes. For the dryl’s solution the Paramecium were moving forward for about 79% of the time. When I was observing them they changed direction a few times but not a lot. They were moving at an average speed; not to fast or to slow. For the Barium solution the Paramecium were moving forward for about 41% of the time. When I was observing them they changed direction frequently instead of going forward for most of the time. They were still moving at an average speed. For the Sodium solution
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Clinical Manifestations 1. The nurse anticipates that Loren will describe her diarrhea as: A) Bloody. Feedback: CORRECT Clients with ulcerative colitis may experience as many as 10-20 liquid‚ bloody stools per day. B) Green and frothy. Feedback: INCORRECT This description is not associated with the diarrhea of ulcerative colitis. C) Gray with observable fat. Feedback: INCORRECT This describes stool often seen in pancreatitis. D) Clay-colored. Feedback: INCORRECT Clay-colored
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queens‚ princes‚ and princesses do. 34. A name for a person who talks too much. 35. How to order beer in a German restaurant. Pun Answers: There may be better ones out there… 1. copper 2. silver 3. argon 4. iron 5. bromine 6. barium 7. zinc 8. hafnium 9. selenium 10. krypton 11. lead 12. cesium 13. europium 14.
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Double Replacement Reactions Lab Pre-Lab 1. If a solid‚ a gas or a weakly ionizing compound such as H2O formed‚ then a reaction has occurred. 2. The formation of a solid‚ the formation of a gas and the formation of a weakly ionizing compound are the driving forces that control a double replacement reaction. 3. a. Balanced equation: CaCl2 (aq) + NaPO4 (aq) Ca3(PO4)2 (s) + 6NaCl (aq) Ionic equation: 3Ca2+(aq) + 6Cl-(aq) + 6Na+(aq) + 2PO43- (aq) Ca3(PO4)2 (s) + 6Na+ (aq)
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The nurse is taking the health history of a 70-year-old patient being treated for a Duodenal Ulcer. After being told the patient is complaining of epigastric pain‚ the nurse expects to note which assessment finding? Melena Nausea Hernia Hyperthermia A nurse is providing discharge teaching for a patient with severe Gastroesophogeal Reflux Disease. Which of these statements by the patient indicates a need for more teaching? Top of Form “I’m going to limit my meals to 2-3 per day to reduce acid secretion
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2 The periodic table 1) Draw a table showing which of the following elements are from the S block and which are from the P block : caesium‚ potassium‚ phosphorus‚ calcium‚ aluminum‚ barium and sulfur S-block elements p-block elements Caesium Phosphorus Potassium Aluminum Calcium Sulfur Barium Ionic Bonding 1) Draw a diagram showing how a magnesium atom reacts with a oxygen atom. In your diagram try to clearly demonstrate the electron transfer process
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THE GRAVIMETRIC DETERMINATION OF SULFATE Learning Goals. 1. To determine the amount of Sulfate in an Unknown sulphate sample. 2. To perform and develop skills in precipitation Gravimetric method of quantitative analysis. DISCUSSION: Gravimetric analysis is one of the oldest analytical techniques and for this reason is referred to as a "classical method." Gravimetric procedures are usually very accurate‚ but more tedious than other methods. The only major equipment needed
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ions in an acid have been replaced by ammonium ions (NH4+) are called ammonium salts. NOTE: •An anion is a negatively charged ion. Hence:•Hydrochloric acid gives chlorides. E.g. sodium chloride‚ ammonium chloride. •Nitric acid gives nitrates. E.g. barium nitrate‚ copper nitrate. •Sulphuric acid gives sulphates. E.g. silver sulphate‚ iron (ii) sulphate. •Phosphoric acid gives phosphates. E.g. sodium phosphate‚ ammonium phosphate. •Each acid gives rise to a series of salts named by the ANION which they
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