![]() 4.6.1.2 Factors which affect the rates of chemical reactions.4.6 The rate and extent of chemical change.AT.5 Making and recording of appropriate observations during chemical reactions including changes in temperature and the measurement of rates of reaction by a variety of methods such as production of gas and colour change.6.2 Factors Affecting Rates of Reaction.Investigate the effect of a number of variables on the rate of chemical reactions including the production of common gases and biochemical reactions. Unit C2: Further Chemical Reactions, Rates and Equilibrium, Calculations and Organic Chemistry.2.3.4 describe and explain the effects on rates of reaction when there are changes in: temperature concentration frequency and energy of collisions between particles and changes in particle size in terms of surface area to volume ratio.2.3.3 interpret experimental data quantitatively, for example drawing and interpreting appropriate graphs to determine the rate of reaction and.Unit 2: Further Chemical Reactions, Rates and Equilibrium, Calculations and Organic Chemistry.4.3.7 suggest experimental methods suitable for the study of the rate of a reaction, for example iodine titrations and colorimetry.Unit A2 1: Further Physical and Organic Chemistry.(b) how to calculate rates from experimental data and how to establish the relationship between reactant concentrations and rate.Unit 2: ENERGY, RATE AND CHEMISTRY OF CARBON COMPOUNDS.by increasing the concentration of a reactant.Collision theory can be used to explain the effects of the following on reaction rates: concentration pressure surface area (particle size) temperature collision geometry.Add some thiosulphate (solid or solution) with stirring, until the solution is no longer blue. Find out how to use these resources, and obtain a list of suggested ‘junk items’ here.Ĭollect up the blue solutions. ![]() This resource is part of a collection of problem-solving activities, designed to engage learners in small group work. The competition may be made more difficult by limiting the volume of sock solutions available to each competitor. Sufficient time should be left at the end for judging. This problem can be approached as a competition, in which case the time for experimenting should be limited. The solution is of low hazard. See CLEAPSS Hazcard HC092. Sodium hydrogensulfate causes serious eye damage. ![]()
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