Purpose To check whether mass is gained or lost during a Chemical reaction. Hypothesis Equipments and Materials • Eye protection • Test tube • 250 ml Erlenmeyer flask and stopper • Weight Balance • Antacid tablet • Dilute solutions of o Sodium Hydroxide‚ NaOH(aq) o Iron(III) Nitrate‚ Fe(NO3)3 • Funnel • Cylinder Procedures 1. Put eye protection on for safety purposes. Part A: Reaction between Iron(III) Nitrate and Sodium Hydroxide. 2. Take two cylinders and fill one (full)
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Name _____________________ The Human Cheek Cell Microscope Lab Period: _____ Date: _________ Problem: What kind of tissue are you able to observe from your cheek sample? Objectives: To learn the parts of and how to use the microscope. To find specimens using low‚ medium‚ and high power. To make a wet mount slide. To view your own (or your partner’s) cheek cells under the microscope. To compare plant and animal cells. Procedure of Investigation 1. Add one drop of methylene blue
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Cell Membrane Transport Cell Membrane Transport Hands-On Labs‚ Inc. Version 42-0034-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a su Premium 609 Words 3 Pages Diffusion and Osmosis of Solutes and Water Across a Membrane Diffusion and Osmosis of Solutes and Water Across a Membrane Brittany Bacallao Nova Southeastern University Abstract: This experiment gave a visual understanding
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Writing an essay Define the context of your essay. The context is the scope of the essay. What are you being asked to write about? The context can include multiple parameters including: Topic. Sometimes your teacher or professor will give you a prompt that you’re required to use. If you do get an option to pick your own topic‚ then choose something that you genuinely want to become an expert about or something you feel passionate about discussing. Format. The length of the essay‚ the way the
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Hugh Kim Lab Report: Stoichiometry Lab 1. Prelab Part1. 1) Create no waste = The principle that encourages chemists to not create waste at the first place rather than cleaning it up afterwards effectively shifts the chemistry more environmentally conscious‚ as creating no waste would make the experiment efficient; the reactants will be reduced to only the essential ones and the product will be maximized‚ a change that would make the experiment economic. Also‚ if chemists aim to
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[Name] [Teacher] [Course] [Date] Catalase Lab Report An enzyme is something that helps to speed up a chemical reaction. The enzyme changes from reaction to reaction‚ but it always has the same impact. However‚ certain variables may cause the enzyme to have a more or less significant impact on the speed of each reaction. One of these variables that changes the effectiveness of an enzyme is temperature. There is an optimal functioning temperature for each enzyme in each reaction‚ depending on
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In this enzyme lab‚ (insert creative name)‚ the enzyme catalase was observed under varying conditions in order to interpret what prohibits and inhibits the functioning of certain enzymes in chemical reactions. Enzymes aid in chemical reactions by speeding up the time it takes for the reaction to occur‚ without getting “used up” throughout the process. Catalase‚ the specific enzyme used in this lab‚ is a protein abundant in the liver and red blood cells. It enhances the breakdown of hydrogen peroxide
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How to write an annotation (http://legacy.earlham.edu/library/content/resources/writing/annotations.html) An annotation is a brief summary of a book‚ article‚ or other publication. An abstract is also a summary‚ but there is a difference between the two. An abstract is simply a summary of a work‚ whereas the purpose of an annotation is to describe the work in such a way that the reader can decide whether or not to read the work itself. The following points provide guidance for writing annotations
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Sample paragraph 1: 1) Topic sentence: Name the text and show the them‚ then provide an argument on the theme/ make a point on that theme. 2) Analysis: Techniques‚ Examples‚ Effect of techniques in the examples. Write a minimum of 3 techniques and their effects. What is in the text? (Characterisation‚ techniques‚ plot‚ themes.) 3) What I learn from the text‚ with respect to the notion put forth in my topic sentence: What we learn through the text (Insight‚ conclusion.) 4) Link to exam question:
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highly concentrated to another area in which its concentration is lower. Cells contain fluids and are surrounded by fluids; in order for a cell to function it is required to be in a balanced state. The progress in which a cell is in its balanced state is called equilibrium. Diffusion is a functioning way for cells to reach their equilibrium. Equilibrium is reached by controlling what enters and exits the cell through a cell membrane that selectively filters molecules by slowing down their movement
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