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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: $Mg + O _2 \rightarrow MgO$ atoms: $1 Mg +20 \rightarrow 1 Mg 10$ 3 For example: $2 Mg + O _2 \rightarrow$ 2 MgO atoms: $2 Mg +2 O \rightarrow 2 Mg 2 O$

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