In a chemical compound, elements are always present in definite proportions by ________.
Volume
Mass
The law of Constant Proportion states that “In a chemical compound elements are always present in definite proportions by mass”.
In a chemical compound, the elements are always present in definite proportions by mass.
In a chemical substance the elements are always present in definite proportions by mass.
In a chemical substance the elements are always present in definite proportion by mass.
In a chemical reaction, the elements are always present in a definite proportion by ___.
State whether the following statement is True or False: In a chemical substance the elements are always present in definite proportions by mass.