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प्रश्न
Which postulate of Dalton's atomic theory is the result of law of conservation of mass given by Lavoisier ?
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उत्तर
The postulate of Dalton's atomic theory, which is the result of the law of conservation of mass proposed by Lavoisier, states that, “Atoms can neither be created nor destroyed.”
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संबंधित प्रश्न
Which postulate of Dalton’s atomic theory can explain the law of definite proportions?
Give one major drawback of Dalton's atomic theory of matter.
The atomic theory of matter was proposed by :
The law of constant proportions was given by :
In an experiment, 4.90 g of copper oxide was obtained from 3.92 g of copper. In another experiment, 4.55 g of copper oxide gave, on reduction, 3.64 g of copper. Show with the help of calculations that these figures verify the law of constant proportions.
When 5 g of calcium is burnt in 2 g of oxygen, then 7 g of calcium oxide is produced. What mass of calcium oxide will be produced when 5 g of calcium is burnt in 20 g of oxygen ? Which law of chemical combination will govern your answer ?
What do we call those particles which have more electrons than the normal atoms ?
What do we call those particles which are formed by the gain of electrons by atoms ?
Two samples ‘m’ and ‘n’ of slaked lime were obtained from two different reactions. The details about their composition are as follows:
- ‘sample m’ mass: 7g
- Mass of constituent oxygen: 2g
- Mass of constituent calcium: 5g
- ‘sample n’ mass: 1.4g
- Mass of constituent oxygen: 0.4g
- Mass of constituent calcium: 1.0g
Which law of chemical combination does this prove? Explain.
State the law of constant proportions.
