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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
What is a chemical formula? What is the significance of a formula?give an example to illustrate?
Write the formula of the following compound:
Sodium bisulphate
Write the formula of the following compound:
Calcium bicarbonate
Write the formula of the following compound:
Magnesium bicarbonate
Write the formula of the following compound:
Aluminium sulphate
Write the formula of the following compound:
Copper [II] oxide
Write the molecular formulae for the following compounds
Iron (III) sulphide
Write the molecular formulae of all the compounds that can be formed by the combination of the following ions
Cu2+, Na+, Fe3+, C1– , `"SO"_4^-2`, `"PO"_4^3-`
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (You may use appendix-III).
- Ammonia
- Carbon monoxide
- (Hydrogen chloride
- Aluminium fluoride
- Magnesium sulphide
