The percent change in mass between the total mass of 10 un-popped kernels and total mass of 10 popped kernels was approximately 18.83 %‚ which is also the same for the percent change of mass between the 1 un-popped kernel and 1 popped kernel. The reason why there’s a percent change in mass is due to the experiment being done in an open system‚ which is a systematic error. The open system is a systematic error because during the period of time to measure the mass of the popped kernels‚ the escaped
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operate it efficiently. Only when the parts of an apparatus are known well to the user can it be manipulated well. Answers to Questions:6 1. Give the composition of the deposit on the porcelain dish when it was held over a luminous (“colored” flame). Answer: _____________________________________________________________ 2. Considering that butane (C4H10) is the most common component of liquefied petroleum gas‚ show a simple word equation for the reaction. Answer: ____________
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involved and inspired to work hard. There were four candles which burned slowly. The first candle said‚ "I Am Peace‚ but these days‚ nobody wants to keep me lit." Then Peace’s flame slowly diminished and went out completely. The second candle said‚ "I Am Faith‚ but these days‚ I am no longer indispensable." Then Faith’s flame slowly diminished and went out completely. Sadly the third candle spoke‚ "I Am Love and I haven’t the strength to stay lit any
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items to determine the possible pH of these items by using the standardization and assess the pigment’s ability to be used as a Universal Indicator. Risk Assessment: When dealing with fire‚ the Bunsen burner should always be switched to the safety flame before lighting. There will also be hot water during the experiment‚ which means that safety goggles‚ bare skin kept to a minimal incase of a splash or spill of water. Leather shoes must also be worn when dealing with acids and hot water incase of
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Title: How to make a home safe Overall‚ our homes present accident-prone environments and there are sober facts and statistics to prove this argument right. Misfortunes at home happen with all of us‚ especially children and aged people. Therefore‚ the situation necessities close consideration of home safety process. One of the most important concerns is fire safety‚ since fires mostly start suddenly and unexpectedly able to damage home and our belongings therein in counted seconds. Most importantly
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Candle race Purpose To determine if color factors into how quickly a candle will burn Additional information Candles have some rather interesting chemistry (as you ’ll find about in this experiment). Have some fun and find out what color candle burns the fastest by conducting your very own candle race! Required materials 5 candles of varying colors‚ preferably white‚ pink‚ yellow‚ green‚ and blue (must be same brand and size) Ruler Marker or Sharpie Matches or lighter Scissors Clay‚ Putty‚ or Play
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‘‘Wavelength‚ Frequency‚ Energy and Flame Color Produced by Different Metals’’ Period 8 October 30th 2013 October 24th 2013 Sosa #2 ABSTRACT: The purpose of this project was to identify the different flame colors that the different metals release‚ compare the flame colors with wavelength‚ compare the wavelength of different flames to their frequencies and energies‚ explain how the flames colors were produced‚ compare and contrast the results obtained in the lab with regard
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experiment was to test which area of three designated areas in a Bunsen Burner flame would have the highest temperature. The first position was the tip of the blue outer flame‚ the second position being the tip of the inner cone‚ and the last position being half way down the inner flame. Through the courses of the experiment‚ data collected showed that Position A was the hottest of the three. The highest average temperature of the flame in effects to a beaker of water was 36.0°C as compared to 34.9°C and
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a child‚ it foreshadows the events in the rest of the book by showing the growth in the fire and his reactions to the growing flame. In the beginning of the scene in which Richard burns down his house‚ Richard begins with with simply looking at the flames. However‚ soon after‚ Richard grows more and more curious and begins to wonder what else the flames could do. The flame in the scene that Richard burns down his house foreshadows the independence and knowledge that Richard gains‚ and reacts to‚ throughout
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experiment is to observe the colours produced when the solutions of metal ions are heated to high temperatures‚ then to explain the results in terms of the energy levels of the metal ions. Lastly‚ to use the flame colours to identify a series of unknowns. Hypothesis: Substance being tested Predicted flame colour NaCl(s) Yellow NaCl Red-Orange NaNO3 Dark Orange LiNO3 Red Sr(NO3)2 Dark Red KNO3 Blue-Indigo Ba(NO3)2 Yellow-Green Cu(NO3)2 Green Ca(NO3)2 Red-Orange Ni(NO3)2 Yellow-Green
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