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What changes can be made to alter the amount of heat produced when magnesium reacts with Sulphuric acid?
Member rating: No Rating | Words: | Submitted: Thu Feb 12 2004
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What changes can be made to alter the amount of heat produced when magnesium reacts with Sulphuric acid? When energy in the form of heat is given out of a reaction it is an exothermic reaction. Exothermic reactions usually need activation energy, the energy to break the bonds in the chemicals and to start the reaction. Once the bonds are broken new stronger bonds are formed. In an exothermic reaction energy in the form so heat is given out to the surrounding when the products are formed. Therefore there is an average rise in temperature; energy is lost which results in a negative ?H. The outcome variable for this experiment is to conclude what changes can be made to vary the heat energy when magnesium is reacted with sulphuric acid. Magnesium + Sulphuric Acid ¡ú Magnesium Sulphate + Hydrogen Mg (s) + H2SO4 (a) ¡ú MgSO4 (a) + H2 (g) There are...
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