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प्रश्न
The law of conservation of mass was given by :
विकल्प
Dalton
Proust
Lavoisier
Berzelius
उत्तर
Antoine Lavoisier
The law of conservation of mass was proposed by Antoine Lavoisier.
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संबंधित प्रश्न
In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium acetate. Show that these observations are in agreement with the law of conservation of mass.
Sodium carbonate + acetic acid → sodium acetate + carbon dioxide + water
State the law of conversation of mass.
When magnesium is burnt in air, there is an increase in mass after the reaction.
If an object weighs 6 kg on earth. What will be its weight on moon ?
If an object is taken to the moon from the earth what will be its mass ?
Give reason for the following.
Electricity is not considered matter.
Fill in the blank:
Matter is anything that has............. and occupies .............
Name the law of chemical combination which was given by Lavoisier.
Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium
sulphate. In an experiment, 15.95 g of copper sulphate reacted with 8.0 g of sodium hydroxide to form
9.75 g of copper hydroxide and 14.2 g of sodium sulphate. Which law of chemical combination is illustrated by this data ? Give reason for your choice.
Complete the statement by filling the blank with the correct word given below.
The law of conservation of mass is strictly valid if mass and _________ are considered together.
