Page 11 - E-Science Prep3 2024-2025 t1 Unit2_Neat
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Science department
Prep.3

           The speed of decomposition of nitrogen pentoxide

                        The end time of the reaction is evidenced
                        by the constancy of concentration of both

                               reactants & products by time.

                                 Measuring the speed of
                                  the chemical reaction

It can be measured practically by:
Disappearance of one of the reactants / Appearance of one of the resultants

Blue         Blue ppt.

Disappearance of blue copper sulphate /
Appearance of blue ppt. copper hydroxide

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