Data Table: Qualitative Cation Tests Name Test Tube 1: HClNH3 Test Tube 2: NaOHExcess Aluminum 3+ No precipitate Slightly milky Dissolves Ammonium + No Precipitate No precipitate Calcium 2+ No Precipitate Milky white precipitate Precipitate does not dissolve Copper 2+ No precipitate Became much darker blue and milky Iron 3+ Brighter yellow Orange precipitate that then dissolves Lead 2+ Milky white precipitate Precipitate gets more milky Silver + Milky white precipitate Precipitate gets
Premium Sodium chloride Ion Ammonia
Iodine Test for Starch Introduction and Hypothesis: In this experiment‚ we used iodine to test for starch in certain solutions. Iodine separates starch from polysaccharides‚ monosaccharides‚ and disaccharides. Starch is a curled polymer of glucose and iodine interacts with molecules‚ which changes the color of the molecules to a kind of black color. Iodine does not respond with carbohydrates that are not curled or coiled‚ thus the color stays yellowish brown. A black color result means that starch
Premium Carbohydrate Glucose Experiment
Testing and assessment is the process of determining the extent to which students achieve instructional objectives. It is a scheme for collecting evidence of what learners accomplish through process of teaching and judge the direction and extent of changes. Testing is a continuous process and forms an integral part of the total system of education and in vary closely related to educational objectives. The purpose of this evaluation is to make provisions for guiding the growth of the learners to
Premium Multiple choice Psychometrics Aptitude
elements in the control process 2. Explain how control charts are used to monitor a process‚ and the concepts that underlie their use 3. Use and interpret control charts 4. Perform run tests to check for nonrandomness in process output 5. Assess process capability * What is Quality Control? 6. A process that evaluates output relative to a standard and takes corrective action when output doesn’t meet standards * If results are acceptable no further action
Premium Quality control Process capability Control chart
STUDY QUESTIONS FOR TEST 3 (Major concepts)—CHAPTERS 5‚ 6‚ 7 This study guide does not include everything you need to know for the exam. It an overview of main topics that I thought were important in lecture—make sure you’ve studied your book‚ completed the questions at the end of each chapter‚ answered all of the study guide questions‚ and taken the practice exam a few times! I would recommend either writing out the answers or‚ if you’re studying with someone else‚ talk through these questions.
Premium Cell membrane Protein Signal transduction
are being rewarded with cash for good grades or test scores on Advanced Placement and SAT exams. Though money is a good incentive for kids to try harder in school‚ it has more negative effects than positive. Based on the research by Richard Fryer‚ an economist at Harvard‚ has proven that in order for rewards to work they must be immediate and consistent. Compelled on solving if rewarding kids for grades could make a difference in standardized test scores‚ he created four reward schemes in four different
Premium Education High school English-language films
Flame Test Lab Introduction/Purpose: When a certain amount of energy is supplied within an atom‚ the electrons of that atom begin to move up the levels of electron configuration. This level of energy is called a quantum. The object of this experiment was to examine the movement of electrons up and down energy levels through the use of given elemental substances. With heat supplying a large amount of energy‚ the properties of the elements caused them to give off a certain color or tone of
Premium Chemistry Photon Atom
Test Methodological Approaches (FPMTFL-FP006_EngX4_E0) | User ID: MEFPMTFL970132 | Attempt: 1 / 1 | Out of: 10 | Started: September 1‚ 2011 23:29 | Finished: September 2‚ 2011 03:57 | Time spent: 4 hr‚ 28 min.‚ 17 sec. | Student finished 7 hr‚ 31 min.‚ 43 sec. ahead of the 720 min. time limit. | Return to Scores. Question 1 (0.5 points) What sort of language analysis would you include the following group of terms in? Choose the right option: Determiners‚ nouns‚ verbs‚ adjectives‚ prepositions…
Premium Language education
General Guidelines 1. Gathering knowledge of the truth is the best preparation for tests. * Concentrated hours of effective study to force facts into your memory is the best way to prepare for any test. * However‚ teachers often try to test your memory of the material by slightly altering it. In this case‚ practice and some test-taking skill will help. 2. Always arrive early and take a moment to relax and reduce your anxiety. * This brief time period
Premium Answer Question Sentence
for the customers would probably select a single very large facility. | True | | False | Convenience for customers would tend to necessitate small‚ dispersed facilities. TF Qu. 20 The center of gravity method of location ... The center of gravity method of location planning is accurate only when the quantities to be shipped to each location are equal. | True | | False | Center of gravity approaches factor in differences in quantities being shipped. TF Qu. 20 The center of gravity
Premium Project management Critical path method Variable cost