what is the requirement for writing molecular formula of different compounds how are the molecular formula of the compound written
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you can write the molecular formula of compound by using criss cross rule
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we write chemical formula to count the number of each atom given.
Steps to write a chemical formula
Step 1: First, you have to decide the type of the bond.
If the prefixes are used, then it is a covalent bond. In case there are no prefixes, it is an ionic bond. After that is decided move to Step number 2.
Step 2: Now, write down the symbol of the polyatomic ion or the element.
Step 3: Now, if the prefix was used, you’ll have to add a subscript. You’ll also have to add a subscript in order to balance the charge.
Solved Example For You
Q. Write the chemical formulae for
HexaneSodium Chloride
Ans. C6H14 – this has 6 atoms of carbon and 14 atoms of Hydrogen and is collectively called Hexane. NaCl- also known as Sodium Chloride or common salt, this formula has a single atom of Sodium and a single atom of Chloride. Always remember that in places where there is no subscript, like in the example above, the value of atom is presumed to be 1.
Steps to write a chemical formula
Step 1: First, you have to decide the type of the bond.
If the prefixes are used, then it is a covalent bond. In case there are no prefixes, it is an ionic bond. After that is decided move to Step number 2.
Step 2: Now, write down the symbol of the polyatomic ion or the element.
Step 3: Now, if the prefix was used, you’ll have to add a subscript. You’ll also have to add a subscript in order to balance the charge.
Solved Example For You
Q. Write the chemical formulae for
HexaneSodium Chloride
Ans. C6H14 – this has 6 atoms of carbon and 14 atoms of Hydrogen and is collectively called Hexane. NaCl- also known as Sodium Chloride or common salt, this formula has a single atom of Sodium and a single atom of Chloride. Always remember that in places where there is no subscript, like in the example above, the value of atom is presumed to be 1.
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