Formula of Binary Compounds
Formula of Binary Compounds
Writing chemical formulae: The shortest way to represent a compound with the help of symbols and valency of elements is known as chemical formula. Chemical formula of a compound shows its constituent elements and the number of atoms of each combining element. In ionic compounds, the charge on each ion is used to determine the chemical formula of a compound. There are some rules for writing the chemical formula:
In case if the number of polyatomic ion is one, the bracket is not required. e.g. NaOH.
Formulae of Simple Compounds: To write the chemical formula for simple compounds:
What is the formula of calcium oxide ? | |||
| Right Option : A | |||
| View Explanation | |||
The combining elements in a molecule of carbon dioxide are ____________ | |||
| Right Option : C | |||
| View Explanation | |||
The formula of a chloride of a metal M is | |||
| Right Option : A | |||
| View Explanation | |||
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