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प्रश्न
Fill the following blanks with suitable words :
In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ....................
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उत्तर
In a chemical reaction, the sum of masses of the reactants and their products remain unchanged. This is called the law of conservation of mass.
संबंधित प्रश्न
The element having atomicity 'four' is most likely to be :
(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).
Correct the following statement:
Molecular formula of water is H2O2
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Sodium bisulphite
Write the formula of the following compound:
Calcium bicarbonate
Write the formula of the following compound:
Copper [II] chloride
Write the formula of the following compound:
Silver [I] chloride
Write the chemical formula for the following elements.
- Hydrogen
- Nitrogen
- Ozone
- Sulphur
