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In chemical reactions what does law of conservation of mass mean?
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Why the number of atoms of reactions must equal the number of atoms of products formed?
Because of the concept of conservation of mass. the mass remains unchanged because the chemical reaction is caused by the interaction of electrons with eachother as opposed to atoms actually destroying or combining with eachother
What does Energy in reactions mean?
In a chemical reaction, energy is transformed. You also need to remember that energy is never lost or made, it is transformed from one form to another.
How does the total amount of matter before a chemical reaction compare to the total amount of matter after the reaction?
If the experiment is done in a contained unit (like a bag) where no gas can escape, the mass should be the same before and after. The concept is called the Conservation of Mass, and it applies for all physical and chemical changes. If the experiment is done in a contained unit (like a bag) where no gas can escape, the mass should be the same before and after. The concept is called the Conservation of Mass, and it applies for all physical and chemical changes.
What does Conservation mass mean?
The law of conservation of mass/matter, also known as principle of mass/matter conservation is that the mass of a closed system (in the sense of a completely isolated system) will remain constant over time. The mass of an isolated system cannot be changed as a result of processes acting inside the system. A similar statement is that mass cannot be created/destroyed, although it may be rearranged in space, and changed into different types of particles. This implies that for any chemical process in a closed system, the mass of the reactants must equal the mass of the products. This is also the main idea of the first law of thermodynamics. As opposed to mass conservation, the principle of matter conservation (in the sense of conservation of particles which are agreed to be "matter") may be considered as an approximate physical law, that is true only in the classical sense, without consideration of special relativity and quantum mechanics. Another difficulty with the idea of conservation of "matter," is that "matter" is not a well-defined word scientifically, and when particles which are considered to be "matter" (such as electrons and positrons) are annihilated to make photons (which are often not considered matter) then conservation of matter does not take place, even in isolated systems. Mass is also not generally conserved in "open" systems (even if only open to heat and work), when various forms of energy are allowed into, or out of, the system (see for example, binding energy). However, the law of mass conservation for closed (isolated) systems, as viewed over time from any single inertial frame, continues to be true in modern physics. The reason for this is that relativistic equations show that even "massless" particles such as photons still add mass and energy to closed systems, allowing mass (though not matter) to be conserved in all processes where energy does not escape the system. In relativity, different observers may disagree as to the particular value of the mass of a given system, but each observer will agree that this value does not change over time, so long as the system is closed. The historical concept of both matter and mass conservation is widely used in many fields such as chemistry, mechanics, and fluid dynamics. In modern physics, only mass conservation for closed systems continues to be true exactly.
What is a material that slows down the rate of a chemical re action?
In general, a material that decreases the rate of a chemical reaction is called an inhibitor.
How does law of the conservation of mass apply to chemical reactions?
The Law of Conservation of Mass applies to chemical changes. When considering a chemical change this would mean that the total mass of all of the reactants in the chemical reaction is equal to the total mass of products in the chemical reaction.
What does conservation mean when relating to chemical reactions?
"Conservation" in chemical reactions referrs to something that is the same before and after the reaction. When writing a chemical equation, balancing the equation represents the 'conservation of atoms' and the 'conservation of mass'. Add all the atoms of each individual type on the reactant side of the arrow and, individually, the number of atoms on the product side for each type of atom will be the same. Atoms cannot be created or destroyed by a chemical reaction.
In chemicals reactions what does the principle of conservation of mass mean?
matter is not created or destroyed
What would it mean if conservation of mass was not true?
there will be no mass
What mean to be analitical?
chemical reactions
What does law of conservation of mass mean?
The law of conservation of mass means that if you start out with 100 grams of reactants, you will end up with 100 grams of products. In addition, the number and types of atoms in the reactants and products will be the same.
What does the law of the conservation of mass mean?
The law of conservation of mass, also known as the principle of mass/matter conservation, states that the mass of an isolated system (closed to all transfers of matter and energy) will remain constant over time. The law implies that mass can neither be created nor destroyed, although it may be rearranged in space and changed into different types of particles; and that for any chemical process in an isolated system, the mass of the reactants must equal the mass of the products.
How does the Law of conservation relate to the reactants and products in a chemical reaction?
The law of conservation of mass states that matter is neither created nor destroyed in a chemical reaction (in a nuclear reaction it is a different matter). Therefore the total mass of the reactants equals the total mass of the products. This law is hard to grasp by some since some reactions are gas creating reactions, and most reactions occur in open systems; Therefore, the gas escapes and cannot be weighed properly, but mass is still conserved.
Why must equations be balanced?
An equation needs to be balenced to demonstrate the Law of Conservation of Mass, which states that in chemical reaction the total mass of the products is equal to the total mass of the reactants. This, simply put, means that what you start out with, you have to end with, even though it can be in a different order (making it (a) different substance(s) then what substance(s) you began with).
In chemicals reaction what does the principle of conservation of mass mean?
matter is not created or destroyed
Do chemical changes and chemical reactions differ?
No. They are just two different terms that mean the same thing.
What is Einstein exception of the law of conservation of energy?
The law of conservation of energy itself is not strictly correct since nuclear reactions change a small amount of matter into energy, if this is what you mean.
