The law of constant proportions states that the in a chemical substance the elements are always present in definite proportions by mass.
One example of law of constant proportions is the production of carbon dioxide. Carbon dioxide exists in nature in different forms and can be chemically produced in different ways. However, all these methods results in the mass proportion by mass of that is carbon and oxygen respectively.
Final Answer:
The law of constant proportions states that the in a chemical substance the elements are always present in definite proportions by mass.
One example of law of constant proportions is the production of carbon dioxide. Carbon dioxide exists in nature in different forms and can be chemically produced in different ways. However, all these methods results in the mass proportion by mass of that is carbon and oxygen respectively.