mass cannot change quanity if it is not added or removed
The mass is not changed; the chemical composition and structure, the state of matter can be changed.
Scientists call this law the law of conservation of matter
The conservation of Energy-Matter.
Mass can not be lost. According to the Law of Conservation of Mass, matter can not be created or destroyed.
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.
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.
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.
Scientists call this law the law of conservation of matter
If matter were destroyed, then it would not be conserved. "Conservation" means that the amount of mass doesn't change.
Law of Conservation of Matter.
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.
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 is the law that says that matter cannot be created or destroyed, but can only change form
If by the law of conservation you mean the Law of Conservation of Matter, then it states that matter cant be created or destroyed.
the law of conservation of matter (or mass)
The conservation of Energy-Matter.
The law of conservation of mass/matter states that mass/matter cannot be created or destroyed in chemical or physical changes.