Question

describe how to do percent by mass by completing paragraph. the ____ of a compound is __ to the __ the ______ that make up the compound. this de of __________. get it? state the law of definite proportions. analyze the law of definite proportions by indicating following examples are for identical or different

Explanation:

Percent by mass of a compound is related to the masses of the elements that make up the compound. It is calculated as the mass of an element in a compound divided by the total mass of the compound and then multiplied by 100. The law of definite proportions states that a given compound always contains exactly the same proportion of elements by mass. For example, water ($H_2O$) always has hydrogen and oxygen in a fixed mass - ratio.

Answer:

The percent by mass of a compound is related to the masses of the elements that make up the compound. This definition is based on the concept of the relative amounts of elements in a compound.
The law of definite proportions: A chemical compound always contains the same elements in exactly the same proportions by mass.