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How can we understand that chemical equations and reactions?

Posted by Suyash Nyamgonde 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

Chemical reactions are the processes in which new substances with new properties are formed. Example - When magnesium ribbon is heated, it burns in air to form a white powder called magnesium oxide.

2Mg + O₂ 2MgO

During a chemical reaction, atoms of one element do not change into those of another element. Only a rearrangement of atoms takes place in a chemical reaction. In a chemical reaction, reactants are transformed into products. The substances which take place in a chemical reaction are called reactants. The new substances produced as a result of chemical reaction are called products.

The method of representing a chemical reaction with the help of symbols and formulae of substances involved in it is called a chemical equation.

Example: Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas.

This equation is written as: Zn + H₂SO₄ ZnSO₄ + H₂

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Posted by Pandey Ji 5 months, 4 weeks ago

CBSE > Class 10 > Science