Advertisements
Advertisements
प्रश्न
Name any two laws of chemical combination.
Advertisements
उत्तर
Two laws of chemical combination are:
- Law of conservation of mass
- Law of multiple proportions
APPEARS IN
संबंधित प्रश्न
State the various postulates of Dalton’s atomic theory of matter.
Which postulate of Dalton’s atomic theory can explain the law of constant proportions ?
In water, the proportion of oxygen and hydrogen by mass is :
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 or less electrons than the normal atoms ?
What do we call those particles which have more electrons than the normal atoms ?
What do we call those particles which have less electrons than the normal atoms ?
Work out the formulae for the following compounds:
Calcium carbonate
State the law of constant proportions.
