Investigation of the reaction between hydrochloric acid and marble chips :: GCSE Chemistry Coursework Investigation

Investigation of the reaction between hydrochloric acid and marble chipsA chemical reaction is when two or more(prenominal) substance called reactants arechemically bonded to form a new product, as a result of the process,for a reaction to take place, the particles must have replete kineticenergy to collide and form new bonds , this is called a self-made impact. The minimum amount of energy needed for a successful striking is activation energy, which is The energy that an atomicsystem must acquire before a process can occur. Chemical reaction isdifferent to a forcible reaction, chemical reaction are not reversibleand results in a new product, however a physical reaction can be comfortably reversed as it only changed its state. The activation energy isable to loosen particles and enable them to from new bonds to raisenew products. The faster the molecules are moving the larger thechance of a successful collision, so the faster and stronger thereaction ordain be , the more kine tic energy a reactant has the easierit is for the new bonds the collide and produce new bonds.Variables that you could changeConcentration of hydrochloric acidSurface area of chipsMass of marble chipsPressureTemperatureVolume of hydrochloric acidTime allowed to measure oxygen minded(p) ofVolume of gas collectedVarying the concentrationHigher concentration will make the reaction stronger, there will bemore particles in the same volume so there are a lot more collisions,making the reaction faster and increasing the chance of a successfulcollision, lower concentration makes a weaker reaction, there will befewer particles so less chance of a collision.Varying the pressureA high amount of pressure will bring particles closer togethermaking the reaction faster as there will be more collision with theenergy, a lower amount of pressure will make the particles more spreadput , making the reaction slower and reducing the amount of collisionand energy.Varying the surface areaA larger surface area will result in the number of particles toincrease so there will be a higher chance of a collision increasingthe prize of reaction , so the reactant broke into smaller pieces wouldreact faster neutralize to larger pieces.Varying the temperatureAn increased temperature will increase the speed of the particle sothey collide more frequent as they have more energy. thusly thereaction will speed up, a decreased temperature will have less energyit will move slower, collide less often retardant the reaction down.Varying the catalystIf I increase the catalyst , the particles will move a lot faster asthe catalyst speeds up the rate of reaction, because they are moving