Consider the chemistry reaction between magnesium and oxygen to recognize the steps associated in balancing a chemistry equation.

You are watching: Mg+o2=mgo

Step 1

Let us first write words equation because that this reaction.

Magnesium + Oxygen → Magnesium oxide

Step 2

Write the chemistry equation because that reaction in between magnesium and also oxygen.

Mg + O2 → MgO

Step 3

Count the variety of times an element is occurring on both L.H.S. And also R.H.S. In this equation.

Mg + O2 → MgO

Component

Reactant

Product

Magnesium

1

1

Oxygen

2

1

This is an unbalanced equation.

Step 4

To balance a chemical equation, very first draw boxes around each formula. Carry out not change anything within the boxes when balancing the equation.

 

Choose a reactant or a product that has the maximum number of atoms in it. In that compound, pick the facet which has the maximum number of atoms. In this equation us shall select MgO i.e. Magnesium oxide and also the element oxygen in it.To balance the oxygen atoms, let united state multiply magnesium oxide molecule by 2 top top the right hand side.

The equation deserve to now it is in expressed as,

 

 

Component

Reactant

Product

Magnesium

1

1 x2 = 2

Oxygen

2

1 x 2 = 2

Step 5

There are two oxygen atom on either side of the equation but one magnesium atom ~ above the reactant"s side and also two ~ above the product"s side. Therefore, multiply the magnesium atom by 2 top top the left hand side.

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Component

Reactant

Product

Magnesium

1 x 2 = 2

2

Oxygen

2

2

 

Balanced equation is,

 

*

The number of atoms the each aspect of reactants = The variety of atoms of each facet of products

Step 6

Writing specific conditions top top the Arrow

The reaction is brought out in the visibility of ‘Heat’. ~ above heating, magnesium combines v oxygen current in waiting to kind magnesium oxide.