CHEMISTRY PENNY LAB ANSWERS

Copper Penny Lab - PLEASE help me answer this question
Question & AnswerRelated QuestionsQuestionCopper Penny Lab - PLEASE help me answer this question!? I did a chemistry lab in which i heated copper pennies in sodium hydroxide solution (changed the copper to "silver"), then heated it on hot plate (changed the "silver" to "gold"). AnswerThe pennies were not changed into gold or silver. I think you left out the fact that when the pennies were placed in the NaOH there was also some zinc in there. The masses would not change in a noticeable manner, the experiment was doSee more on answersoStatus: OpenPublished: Mar 31, 2011Answers: 2
Penny Lab Review Flashcards | Quizlet
Start studying Penny Lab Review. Learn vocabulary, terms, and more with flashcards, games, and other study tools. the penny. The NaOH dissolved the zinc. (that was what made the water murky) And small pieces of zinc adhered to the penny (coated) It was a physical change because no NEW color was created. Chemistry Honors: Quiz 4. 13
The Penny Lab answer?
The penny turns silvery because the zinc (Zn) coats the outside of the copper penny. You then chemically combine the two metals when they share their electron cloud.[DOC]
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Web viewPenny Lab Answer Key - A. 7th Grade Environmental Science. Mrs. Krempa #1. The independent variable in this experiment was the side of the penny. #2. The dependent variable in this experiment was the number of drops on a penny. #3. Surface tension is what makes water dome on the penny.
Answers - Penny Lab - YouTube
Click to view on Bing10:46Jan 28, 2016Answers - Penny Lab John Lee Vieira. Loading.. Unsubscribe from John Lee Vieira? Chemistry: How To Find The Amount of Excess Reactant Remaining - Duration: 4:17.Author: John Lee VieiraViews: 1[DOC]
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Web viewPenny Lab. Teacher’s Instructions. Brief Description of Activity: The lesson uses in depth laboratory procedure to familiarize students with the operations of a laboratory as well as an activity to help students learn about physical properties of elements and the visual manifestations of physical changes.
Penny Lab Report - Master Your Classes™ | Course Hero
Chem 125 Penny Lab Report Purpose and Hypothesis: The purpose of this experiment was to find if the composition of a post-1962 penny has remained constant throughout the years. We were also testing to see what material(s) the pennies in 2006 are now composed of. We were informed before our experiment of the many changes the composition of the penny has gone through over the years.75%(4)Author: Kimro[PDF]
Take a Guess - sciencespot
(2) Drops on a Penny lab Introduction - I pass out the lab materials and safety goggles. We discuss the directions and safety rules that relate to this experiment (see list below). Students must first perform a control test with the plain penny before coating the penny in the testing liquid (soap).[PDF]
Turning Copper Pennies into “Silver” and “Gold”! SCIENTIFIC
Turning Copper Pennies into Silver and Gold! continued 2 21 linn Sientii n ll igts eserved Disposal Please consult your current Flinn Scientific Catalog/Reference Manual for general guidelines and specific procedures, and review all federal, state and local regulations that may apply, before proceeding.
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