which postulate of Dalton's atomic theory is law of conservation of mass
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which postulate of Dalton's atomic theory is law of conservation of mass
Dalton's atomic theory states that atoms are indivisible and indestructible particles, and that chemical reactions involve only the rearrangement of atoms. The postulate that directly explains the law of conservation of...
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Explain the significance of the postulate 'atoms are neither created nor destroyed' in chemical equations and stoichiometry.
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It ensures balancing of equations and mass conservation in calculations.
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State and explain the postulate of Dalton's theory that is the basis of the law of conservation of mass, with an example.
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Atoms are neither created nor destroyed; e.g., burning magnesium: 2Mg + O2 → 2MgO, mass of MgO equals mass of Mg plus O2.
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Discuss how Dalton's atomic theory explains the law of conservation of mass and the law of definite proportions.
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Conservation: atoms indestructible; definite proportions: atoms combine in fixed ratios.
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In a chemical reaction, 10 g of calcium carbonate decomposes to give 5.6 g of calcium oxide and 4.4 g of carbon dioxide. Show that this obeys the law of conservation of mass. Which postulate of Dalton's theory is applicable?
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Total mass of products = 5.6 + 4.4 = 10 g = mass of reactant; applicable postulate: atoms are neither created nor destroyed.
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