Investigate Factors Affecting Reaction Rate

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What are the factors affecting reaction rates? Investigate factors affecting reaction rates Background information: Reaction rate is a rate which describes how fast a chemical reaction is going on, in other words, the rate in which reactants change into product over time. The general formula for calculating rate of reaction is: Reaction rate = Change of mass (Initial mass - Final mass) / Reaction duration (Initial reaction time - Final reaction time). Temperature, surface area, concentration, stirring and catalysts are the main factors affecting reaction rate, since these factors are factors that vary or change the frequency of the collisions between particles of reactants during a chemical reaction. The law of conservation of mass also stated that mass is neither created nor destroyed during a chemical reaction. The mass of reactants is equal to the mass of products, as shown in the diagram below: Six carbon atoms react with six oxygen molecules to form six carbon dioxide molecules. Notice that the number of atoms on the right of the equation is equal to the number of atoms on the left. As a result, mass is conserved. Research question: How will temperature affect the reaction between 20 grams of HCL(0.3mole/L solution) and 3 grams of CaCO3 in powder form. Hypothesis: If the temperature of HCL (0.3 mole, 20 grams) and CaCO3 (3 grams) increased by 10 degree Celsius, the reaction rate of between HCL and CaCO3 will be doubled. For example, in my experiment, the temperature of chemicals are increased from 30°C to 40°C,then to 50°C and 60°C. If the initial reaction rate is 1, then: Temperature | 30°C | 40°C | 50°C | 60°C | Rate of reaction | 1 | 2 | 3 | 4 | Explain using scientific reasons: When the molecules of an element absorb more heat energy through the increase of temperature, the particles within move faster, more collisions are

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