Investigating the factors affecting the rate of a chemical reaction. Introduction: In my coursework I will be mainly concentrating on the reaction between dilute hydrochloric acid with marble chips (calcium carbonate). Calcium carbonate (marble chips) + hydrochloric acid ==> calcium chloride + water + carbon dioxide CaCO3(s) + 2HCl (aq) ==> CaCl2 (aq) + H2O (l) + CO2 (g) Aim: The aim of the experiment is to investigate how the concentration of hydrochloric acid affects the rate of reaction with
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Ivo School Geography Department - GCSE REVISION Define the following key terms: Birth Rate Death Rate Life Expectancy Total Fertility Rate www.geobytesgcse.wordpress.com Birth Rate – the number of babies born per 1000 people per year Death Rate – the number of deaths per 1000 people per year Life Expectancy – the average number of years a person is expected to life for Total Fertility Rate – average number of children a woman is likely to have in her lifetime Yr 10 - Population
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ABSTRACT Enzymes are biological catalysts; they cause reactions to happen that would not normally occur due to the activation energy that would be required. They bring together substrates and cause chemical reactions that are essential for life. Without enzymes life processes‚ and life in of itself‚ would not be possible. Enzymes are also special because very little of the actual enzyme is actually used up in the reaction. In this lab two different factors‚ temperature and pH‚ were tested to see
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Physics IA A factor affecting Spaghetti Jonathan Dean Scotch College 28/03/13 Design Introduction The aim of this experiment will be to conduct an investigation into a factor of spaghetti. Such factors include how the diameter will relate to the flexibility of the spaghetti‚ or how the carbohydrate content will relate to the flexibility. For this experiment‚ the carbohydrate content and how it relates to the flexibility will be investigated. Flexibility will be determined by the angle
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15th Influence of pH on Enzyme Activities How does the pH of solution influence the speed of enzyme activities? Enzymes are protein catalysts and chemical that speed up chemical reaction without being involved in the reaction. They are involved in the human digestive system to help people digest food more efficient. Food are substrates to be break down and absorb through the digestive system in the body. Substrate is a molecule that bond with the active site of enzyme to transfer in to one or
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of the increase in the enzyme concentration on the rate of reaction. By using self investigative and experimental skills‚ the experiment was done in order to determine how the rate of reaction will be altered‚ whether it will increase‚ decrease or remain constant when the different concentration of enzymes added. INTRODUCTION: Enzymes are produced naturally in plant‚ animal‚ and microbial cell. There are thousands of different enzyme can be found in any cell. Enzymes can be describe as molecules
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Factors Affecting Reaction Rate Bob Jones Josh October 2‚ 2014 Period 3 Introduction: In reference to the collision theory‚ molecules act as small spheres that collide and bounce off each other‚ transferring energy among themselves when the collide. In order for a reaction to occur‚ there must be collisions between molecules. Through experimentation‚ factors are discovered that influence the reaction rates of chemical reactions include
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and so much more. Some factors that affect biodiversity of species are what are around the biomes‚ the unnatural species living there‚ extreme climate changes (in general)‚ pollution‚ unusual weather changes(drought‚ flood‚ snow‚ etc.)‚ littering‚ loss of natural resources‚ extinction of plants/animals‚ and much much more. The difference between biotic and abiotic factors in an animal’s habitat is that the biotic factors are living or have lived while the abiotic factors are not living‚ will not
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4 EXTERNAL FACTORS THAT AFFECT HUMAN RESOURCE MANAGEMENT Government Regulations – With the introduction of new workplace compliance standards your human resources department is constantly under pressure to stay within the law. These types of regulations influence every process of the HR department‚ including hiring‚ training‚ compensation‚ termination‚ and much more. Without adhering to such regulations a company can be fined extensively which if it was bad enough could cause the company to shut
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What factors affect the resistance of a piece of wire? What I am going to investigate is‚ what factors affect the resistance of a piece of wire. To start this experiment I will need the following equipments: Power pack Ammeter Voltmeter 1 meter ruler (100cm) 110cm of wire Crocodile clips This shows how the equipment will be set up. A V I will measure the Voltage and also Current of the wire. Once I have recorded the results
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