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Mass is always conserved in chemical reactions. This just means that stuff can't be created or destroyed just because the atoms reorganised themselves. So if you weigh your magnesium ribbon, then burn it, then weigh it again, it will have got heavier, and the amount it has gained is the mass of oxygen you used from the air in the room in the burning. But Einstein's famous equation E=mc2 tells us how much energy we will get if we do manage to convert some mass into energy. In a nuclear reactor or in the sun a tiny amount of mass disappears and is converted into energy - if you multiply the amount of mass destroyed by the speed of light squared, you get the answer for how much energy you've made. Since the speed of light is a REALLY big number, the amount of energy is enormous.
Wiki User
ā 14y ago
Wiki User
ā 14y agoYes, mass is conserved in all cases expect nuclear reactions. Thus, when a substance is physically changed, such as shaped, it does not gain or lose any mass. For example, a gold bar hammered into a sheet will have the same mass as it did before being hammered.
Wiki User
ā 13y agoAlways. For mass to not be conserved in any instance would violate the law of conservation of matter, which (as far as we know) cannot be done. However, the ability to measure the mass of the products of a reaction is something different. In order to accomplish that, you must have a closed system. If one of your products is a gas, this may be difficult, as gases tend to diffuse, blow away, or otherwise leave the area if not carefully controlled. If the mass of your products does not equal the mass of your reactants, then you either made an error in measuring one or both masses, or you let some of your reactants or products leave the system in between measurements. It is also possible for an outside substance to enter the system that wasn't measured as a reactant, such when Oxygen bonds with Iron in the process of rusting. It's very hard to mass the Oxygen that will react and nothing else unless the system is airtight.
Wiki User
ā 13y agoA small amount of mass is converted to energy.
To find how much energy,Use:-E=mc^2
Wiki User
ā 13y agoFalse; in a nuclear reaction, some mass is converted into energy or the reverse.
Wiki User
ā 12y agoWiki User
ā 7y agoThis law was deduced from numerous experiments.
Wiki User
ā 14y agoyes, mass is conserved.
Wiki User
ā 10y agoYes.
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In a nuclear reaction WHAT does not have to be conserved?
While overall ENERGY has to be conserved, MASS does not. In a nuclear reaction mass can be converted into energy so the mass of the products may be less than the mass of the reactants. The difference in mass is converted into energy as Einstein's equation describes (E=MC squared). In a chemical reaction MASS has to be conserved.
What happens to total amount of mass in chemical reaction?
The mass remains conserved... while it is in case of a nuclear reaction where the total mass changes... in chemical reaction there is no change in mass...
What is always conserved in a chemical reaction?
mass
What is conserved during a reaction?
Both mass and charge
Does The Law of Conservation of Mass states that mass is conserved in a reaction system?
True
In a nuclear reaction WHAT does not have to be conserved?
While overall ENERGY has to be conserved, MASS does not. In a nuclear reaction mass can be converted into energy so the mass of the products may be less than the mass of the reactants. The difference in mass is converted into energy as Einstein's equation describes (E=MC squared). In a chemical reaction MASS has to be conserved.
What quantities are conserved when balancing a nuclear reaction?
In order for a nuclear reaction to be balanced, there are quantities that must be conserved. The quantities are the atomic numbers and mass numbers of the particles involved in the reaction.
Is energy conserved in a nuclear reaction?
Yes. Basically, energy is ALWAYS conserved. The popular saying, that in a nuclear reaction mass is converted to energy, is plainly wrong, since both mass and energy are conserved. Read about "mass deficit", for example in the Wikipedia, for more details.
What happens to total amount of mass in chemical reaction?
The mass remains conserved... while it is in case of a nuclear reaction where the total mass changes... in chemical reaction there is no change in mass...
In a nuclear reaction mass must be lost to produce energy. true or false?
False. Both mass and energy are conserved.
In a nuclear fusion reaction mass is transformed into?
It is often stated that mass is transformed to energy. This is wrong, since both mass and energy are conserved in a chemical reaction - or in a nuclear reaction. The Wikipedia article on "binding energy" clarifies this.
What is always conserved in a chemical reaction?
mass
What is conserved during a reaction?
Both mass and charge
Can you convert matter into energry?
Sort of. That's a common explanation for what happens in a nuclear reaction. But technically, both matter and energy are conserved - there is no more or less matter after the reaction, than before the reaction. Therefore, in such cases there is no matter-to-energy conversion. Read the Wikipedia article on "Mass deficit" or "Binding energy" for a more detailed explanation. There's no sort of about it. The meaning of Einstein's equation (E = mc2) is that matter and energy are interconvertible, and this happens all the time. What is conserved is mass-energy. Mass and energy are not conserved separately.
Does The Law of Conservation of Mass states that mass is conserved in a reaction system?
True
Iām a nuclear reaction which of the following must be conserved?
ChargeThe count of nucleons
Is mass conserved in the chemical reaction of zinc and iodine?
Of course !
