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Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations3 Marks
Question
What is the difference between skeletal equation and balanced chemical equation? Give example.
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Answer

SKELETON EQUATION
BALANCED CHEMICAL EQUATION
1
It describes a chemical reaction using the chemical formulas of the rectants and products.
1
It shows the number of molecules and atoms of both reactants and products.
2
It is unbalanced.
2
It is balanced.
3
For example:
Mg + O2→ MgO
atoms:
1Mg + 2O→ 1Mg 1O
3
For example:
2Mg + O2→2MgO
atoms:
2Mg + 2O→ 2Mg2O

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