5 August, 10:40
What is a chemical reaction? List an example
5 August, 11:19
A chemical reaction is a process where one or more substances are combined into one or more new substances
Substances are either chemical elements or compounds that can be found on the periodic table. A chemical reaction takes the atoms from the substance and rearranges them into a new substance or compound. In a chemical reaction, the reactants cannot create or destroy any atoms (Law of conservation of Mass).
An example of a chemical reaction can be iron and oxygen to create rust, burning of wood. Wherever there is a chemical change (gas bubbles, precipitate, colour change, temperature change, Light created and change in smell or taste)
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