# Any help is greatly appreciated! The Law of Definite Proportions _____________________________ .a. contradicts dalton's atomic theory b. replaces the law of conservation of mass c. agrees with...

Any help is greatly appreciated!

The Law of Definite Proportions _____________________________ .

a. contradicts dalton's atomic theory

b. replaces the law of conservation of mass

c. agrees with dalton's atomic theory

d. assumes the atoms of all elements are identical

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### 1 Answer

**The Law of Definite Proportions agrees with Dalton's Atomic Theory so the answer is "c".**

The law of definite proportions, also known as Proust's Law, states that a chemical compound contains the same proportion of elements by mass. This law is one of the foundations of stoichiometry and it arose from one of the assumptions of John Dalton's atomic theory dating back to 1803. This assumption was that when elements react, their atoms combine in simple, whole-number ratios. Therefore relative atomic weights could be figured from the percentage of elements in compounds. Dalton basically described the law of definite proportions by saying that compounds had specific atom to atom ratios.

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