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The law of conservation of mass is a foundational concept in science, asserting that mass in an isolated system is constant over time. Established by Antoine Lavoisier, it revolutionized chemistry and underpins the balancing of chemical equations. Modern physics, including quantum mechanics and relativity, expands this to mass-energy conservation, addressing the interconvertibility of mass and energy in nuclear reactions and the influence of spacetime curvature in strong gravitational fields.
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The law of conservation of mass states that the mass of an isolated system remains constant over time
17th Century
The concept of mass conservation was first introduced in the 17th century
18th Century
Antoine Lavoisier's experiments in the 18th century established the law of conservation of mass in chemical reactions
The law of conservation of mass is essential for balancing chemical equations and predicting reaction outcomes
Einstein's theory of special relativity demonstrates that mass and energy are interchangeable
In nuclear reactions, mass can be converted into energy and vice versa
In strong gravitational fields, the conservation of mass-energy is described by the stress-energy tensor
In open systems, the conservation of mass is not strictly observed due to energy exchanges with the surroundings
In strong gravitational fields, the curvature of spacetime affects the conservation of mass-energy
00
According to this principle, mass is neither ______ nor ______ within an isolated system.
created
destroyed
01
The total mass before and after any ______ or ______ process must remain unchanged.
physical
chemical
02
The conservation of mass is vital for understanding ______ and ______ transformations.
matter
energy
