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    Investigating Factors that Affect the Rate of a Reaction Aim === To investigate the rate of reaction when you combine the chemicals sodium thiosulphate and hydrochloric acid at different temperatures. Prediction ========== My hypothesis is that the higher the temperature the lower the amount of time taken for the reaction to take place and therefore the lower the temperature the longer the time will take for the reaction to take place. The reason that I think this is because

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    Investigating Factors that Affect the Rate of Reaction 1.0 Introduction The rate of a reaction is a measure of how quickly reactants are used up or products are made. There are many factors which will affect the rate of reaction between 2 reactants. These are: surface area of the potato chip, temperature of the liquid, catalyst, light, physical stirring and concentration of liquid. In this experiment I shall look at the effect of concentration on the rate of reaction between hydrogen

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    Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase. Pressure

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    Investigating Factors That Affect the Rate of Photosynthesis INTRODUCTION All green plants use raw materials from their surrounding atmosphere to make their own food. They do this by a process called Photosynthesis. Green plants contain many tiny structures called Chloroplasts and these contain a chemical called Chlorophyll. This chemical is a very important part of Photosynthesis, as this is where the plant, to produce its own food, absorbs sunlight. Photosynthesis mainly takes place

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    Investigating Factors that Affect Heat Loss PROBLEM ======= I have been asked to investigate the link between colour and heat loss. Does the silver or the black cup lose its heat faster? HYPOTHESIS ========== I think that the black cup will lose heat faster than the silver cup because black absorbs heat, then releasing it out of the cup into the surrounding air and surface, where as the silver cup will reflect the heat back into the cup therefore keeping the water hotter for

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    Investigating Factors Affecting the Heat of Combustion of Alcohols PLANNING SECTION Introduction ------------ Alcohols are organic substances, and consist of Hydrogen, Oxygen and Carbon. All alcohols are toxic but the amount that can be tolerated by the human body varies for different alcohols. For example drinking small amounts of Methanol can lead to blindness and even death. Ethanol is the only alcohol that can be drunk safely and is found in all alcoholic drinks. Throughout this

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    Investigating Factors that Alter the Rate of Reaction Aim, To investigate the factors which alter the rate of the reaction. Planning, In our experiment we will measure the rate of reaction by taking the weight of the solution every ten seconds. This may be altered as we finalise our plans. This method will give us lots of results; this will keep the accuracy of the investigation. We would like to repeat the experiment, this time measuring the rate by measuring the volume of gas

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    Investigating Factors that Affect the Swinging Of a Pendulum Aim Our aim is to find out whether changing the variables of the swinging pendulum affects the speed. Preliminary Work In order to find out which variable/s affect the swinging of a pendulum, I need to test all the variables available. There are three variables we will be investigating: * The length of the string * The mass of the pendulum * The angle from which the pendulum is swung For each experiment, I will

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    Investigating Factors that Affect the Rate of Photosynthesis in Elodea Aim: To find out which factors affect the rate of photosynthesis in Elodea. Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast

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    Investigating Factors that Vary When Gas is Given Off When Hydrochloric acid mixes with marble chips a reaction takes place and gas is given off, we are going to investigate factors that vary how the gas is given off. Aim I am going to investigate how varying the surface area of marble chips differs their rate of reaction with Hydrochloric acid. Variables I am going to make a table of the different varible we can use for our experiment. Level of Hydrochloric acid This must

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