ICSE Class 9 Answered
Information conveyed by a balanced chemical equations
Asked by rajwansh931 | 08 Dec, 2020, 04:48: PM
Expert Answer
Information convened by balanced chemical equation:
- The substances take part in a chemical reaction and substances formed as a result of reaction.
- The number of atoms of each element participating in the reaction.
- The number of molecules of different substances taking part in the chemical reaction.
For example:
Zn + H2SO4 → ZnSO4 + H2
Here one molecule of zinc, one molecule of sulphuric acid react to give one molecule of zinc sulphate and one molecule of Hydrogen.
- Composition of respective molecules i.e. one molecule of sulphuric acid contains two atoms of hydrogen, one atom of sulphur and four atoms of oxygen.
- Relative moleculer masses of different substances i.e. molecular mass of
Zn= 65, H2SO4 (2+32+64) = 98
ZnSO4 (65+32+64) = 161
H2 = 2
- It tells about the volumes of gaseous reactants and products.
For example: N2 + 3H2 → 2NH3
1 Vol. 3Vol. 2 Vol.
1 Volume of Nitrogen
3 Volumes of hydrogen
2 Volumes of ammonia
Answered by Varsha | 08 Dec, 2020, 06:48: PM
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