Question

explain the chemical changes and give their chemical equations of the following : a) sodium and copper reacting with oxygen, b) sulphur and phosphorus reacting with oxygen, c) sodium and aluminium reacting with HCL, d) sodium and zinc reacting with water

Answer 1

here is your answer....

the reaction where the rate of reactant is equal to rate of product where there is no loss of any chemical reaction is known as chemical changes...

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