The law of conservation of mass states that mass cannot be created or destroyed. This is not strictly correct, as mass and energy can be inter-converted, as in nuclear reactions. Thus, 'mass and energy cannot be created or destroyed' is more accurate.
LOST! Even when emitted in the form of heat, it is never lost!
In general, the second law of Thermodynamics suggests that when an energy system is left alone to consume and produce its own energy, it tends to emit most of its energy in the form of heat. Heat is a form of energy difficult to obtain and control, especially when it flows free in the environment! Thus the "mess" of the studied energy system expands and we say that its Entropy increases. However, o matter how "messy" that system gets, it never loses energy, even if the greatest volume of it turns into heat that we can no longer use! It is still there, no matter of us being unable to obtain it!
Energy cannot be created or destroyed.
The total amount of energy (in a closed system, or in the Universe) cannot change.
Matter cannot be created nor destroyed.
Gained nor lost.
That would be the law of conservation of mass, conservation of matter.
law of conservation of mass
A citation from Wikipedia:"The law of conservation of mass, 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."For more details see the link bellow.
There is the law of conservation of mass, and the law of conservation of energy. All three state: (Mass/Matter/Energy) cannot be created or destroyed, simply transferred.
The Law of Conservation of mass (or energy) states that matter cannot be created or destroyed.
The law of conservation of mass/matter states that mass/matter cannot be created or destroyed in chemical or physical changes.
The law of conservation of mass, which states that in a closed system, mass is neither created nor destroyed, it can only change form. This means that in a chemical reaction that takes place in a closed system, the mass of the reactants equals the mass of the products.
You are confusing the law of conservation of matter/mass with the law of conservation of energy. The law of conservation of matter/mass states that in a closed system matter is neither created nor destroyed. During a chemical reaction matter is rearranged, it doesn't change forms (energy can change forms). The atoms in the products are the same atoms that were in the reactants.
The law of conservation of mass. We now know that technically it's not quite true, but it's so close that the difference cannot be detected on the most sensitive balances we have.
That would be the law of conservation of mass, conservation of matter.
During chemical processes in a closed system the mass remain constant.
The law of conservation of mass states that matter cannot be created or lost in a chemical reaction. The weight of the reactants will ALWAYS equal the weight of the products.
If by the law of conservation you mean the Law of Conservation of Matter, then it states that matter cant be created or destroyed.
law of conservation of mass
The law of conservation of matter states that matter is neither created nor destroyed. An example of this is a simple combustion reaction of methane. CH4 + 2O2 --> CO2 + 2H2O. There is 1 carbon, four oxygen's and four hydrogens on each side, thus showing conservation of matter.
There is no law of concervation of mass anymore, it is the law of conservations of energy (since mass can be converted into pure energy, thank you Albert).
The law of conservation of mass states that in a chemical reaction the mass of the reactants must equal the mass of the product.