Question

2. Why are symbols and formulae of substances
important ?​

Answer 1

Answer:

Importance of symbols and Formulae :

• Types of elements present in the compound. E.g. (H2O is made of two elements hydrogen and oxygen).
• Number of each kind of atoms in one molecule. E.g. (water has 2 atoms of hydrogen combined with 1 atom of oxygen.)
• Mass of one molecule of the compound. E.g. [H2O has mass (1×2)+16=18g].

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Answer 2

Answer:

Symbols and formulae of substance gives a lot of information like. Types of elements present in the compound. E.g. (H20 is made of two elements hydrogen and oxygen). E.g. (water has 2 atoms of hydrogen combined with 1 atom of oxygen.)

Explanation:

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