state the law of conservation of mass and explain one of them with examples.
Answers
Answer:
the law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction.
example:- when we mix silver chloride and sodium nitrate we get silver nitrate (precipitate) and sodium chloride here the atoms are just rearranged
AgCl + NaNO3 = AgNO3 ( white ppt.) + NaCl
Explanation:
The mass in an isolated system can neither be created nor be destroyed but can be transformed from one form to another.
Explanation:
Formula of Law of Conservation of Mass
Conservation of mass can be expressed in the differential form using the continuity equation in fluid mechanics and continuum mechanics as:
∂ρ∂t+▽(ρv)=0
Where,
ρ is the density
t is the time
v is the velocity
⛛ is the divergence
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Law of Conservation of Mass Examples
Combustion process: Burning of wood is a conservation of mass as the burning of wood involves Oxygen, Carbon dioxide, water vapor and ashes.
Chemical reactions: To get one molecule of H2O (water) with the molecular weight of 10, Hydrogen with molecular weight 2 is added with Oxygen whose molecular weight is 8, thereby conserving the mass.