Question

List any 3 limitations of a chemical reaction.


(b) Balance the following equation


Mg + O2 ------→ MgO​

Answer 1

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List of limitation for chemical equations:

• Must be mentioning the reactants and products' state.
• Catalyst affecting the reaction.
• The concentration terms of reactants and products must be added.
• Write the type of reaction either exothermic one or an endothermic one.

Balance:- Mg+02--->MgO

$\sf \: Mg+O_2\implies2MgO$

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Answer 2

Answer:

As magnesium (Mg) has a valency of +2, and oxygen (O) has a valency of -2, the ratio would be 1:1, and magnesium oxide would be represented as MgO. The number of atoms of each element on reactant and product side must be equal. That is the basic principle for balancing an equation.