State and explain lanes of
chemical combination
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Answer:
●Law of Constant Proportions
In a chemical compound, the elements are always present in definite proportions by mass. This means each compound has the same elements in the same proportions, regardless of where the compound was obtained, who prepared it, or its mass.
●The law of conservation of mass states that the net change in mass of the reactants and products before and after a chemical reaction is zero. This means mass can neither be created nor destroyed. In other words, the total mass in a chemical reaction remains constant.
This law was formulated by Antoine Lavoisier in 1789. It was later found to be slightly inaccurate, as in the course of chemical reactions mass can interconvert with heat and bond energy. However, these losses are very small, several orders of magnitude smaller than the mass of the reactants, so that this law is an excellent approximation.
●The law of constant proportions states that when a compound is broken, the masses of the constituent elements remain in the same proportion. Or, in a chemical compound, the elements are always present in definite proportions by mass.
This means each compound has the same elements in the same proportions, regardless of where the compound was obtained, who prepared it, or its mass.
This law was formulated and proven by Joseph Louis Proust in 1799.
●The law of multiple proportions states that when two elements form two or more compounds between them, the ratio of the masses of the second element in each compound can be expressed in the form of small whole numbers.
This law was proposed by John Dalton, and it is a combination of the previous laws.
●The law of reciprocal proportions states that when two different elements combine with the same quantity of the third element, the ratio in which they will do so will be the same or a multiple of the proportion in which they combine with each other.
This law was proposed by Jeremias Ritcher in 1792.
Answer:
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