# Who developed the law of conservation of mass

## Who developed the theory conservation of mass?

Antoine Lavoisier

1785

Lavoisier

## How did Lavoisier discovered the law of conservation of mass?

Lavoisier placed some mercury in a jar, sealed the jar, and recorded the total mass of the setup. … He found in all cases that the mass of the reactants is equal to the mass of the products. His conclusion, called the states that in a chemical reaction, atoms are neither created nor destroyed.

## How was the law of conservation of mass proven?

Antoine LavoisierA portrait of Antoine Lavoisier, the scientist credited with the discovery of the law of conservation of mass. This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system.

## Can matter be created?

The first law of thermodynamics doesn’t actually specify that matter can neither be created nor destroyed, but instead that the total amount of energy in a closed system cannot be created nor destroyed (though it can be changed from one form to another).

## Is the law of conservation of matter and mass the same?

Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

## Why does mass never change?

Weight is the measure of the force of gravity on an object. The mass of an object will never change, but the weight of an item can change based on its location. … However, you will always have the same mass on Earth as you have in outer space.

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## Is the law of conservation of mass true?

Given the mass-energy equivalence of relativity, the conservation of relativistic mass is simply the same as the conservation of energy. … So, conservation of mass is true, with the catch that, the mass of a system is not just the sum of the ‘rest masses’ of the individual particles, as is done classically.

## Why is it important to balance a chemical equation?

Because of the law of conservation of mass, balancing chemical equations gives a more accurate representation on what’s happening in a reaction. The accuracy of the ratios of moles is important in calculating the theoretical yield and how much stuff is reacting mass-wise (stoichiometry).

## Why does a chemical equation need to be balanced quizlet?

Why must chemical equations be balanced? They must obey the Law of Conservation of Mass that states that matter cannot be created or destroyed, it is conserved. Atoms are never lost or gained in chemical reactions, they are rearranged. The mass of the reactants must equal the mass of the products.

## How could Antoine Lavoisier The French scientist credited with proposing the law of conservation of matter have demonstrated this law quizlet?

Antoine Lavoisier studied combustion by measuring the masses of objects before and after they were burned in closed containers. There was no change of the masses in the containers before and after the combustion, so he created the Law of Conservation of Mass.

## Can neither be created nor destroyed?

The law of conservation of energy, also known as the first law of thermodynamics, states that the energy of a closed system must remain constant—it can neither increase nor decrease without interference from outside. … The sum of these is called mechanical energy.

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## Which one is the best example of law of conservation of mass?

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases, equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.