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How to write physical state in a chemical equation using different symbols means writing symbols of physical states, whats are four different symbols of physical states learn this in this class 10 chapter notes.

Notes ⇒ Class 10th ⇒ Science ⇒ 1. Chemical Reactions and Equations

Notes 1. Chemical Reactions and Equations - Writing Symbols of physical states | Class 10 Science - Toppers Study

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Notes 1. Chemical Reactions and Equations - Writing Symbols of physical states | Class 10 Science - Toppers Study

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Chapter 1 Science class 10

Writing Symbols of physical states class 10 Science Chapter 1. Chemical Reactions and Equations

Sure! The following topics will be covered in this article

Symbols Of Physical States
Writing Symbols Of Physical States
Four Different Type Of Symbols Of Physical States
Symbols Of Physical Sates Notes
Chapter 1 Notes Science Class 10
Class 10 Notes Science Chapter 1
What Is Precipitation Reaction
What Is Precipitate

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1. Chemical Reactions and Equations

| Writing Symbols of physical states |

Notes 1. Chemical Reactions and Equations - Writing Symbols of physical states | Class 10 Science - Toppers Study

Writing Symbols of physical states

Physical states tell us about the visible forms of elements/compound. Above both the balanced equations do not tell us anything about the physical state of elements / molecules of reactant and product.

To make a chemical equation more informative, the physical states of the reactants and products are mentioned along with their chemical formulae. The gaseous, liquid, aqueous and solid states of reactants and products are represented by the notations (g), (l), (aq) and (s), respectively.

The word aqueous (aq) is used when reactant or product is soluble in water or dissolve in water.

What are the four symbols of physical states?

The symbols of physical states:

Liquaid state is written using (l) symbol.
Gaseous state is written as (g) symbol.
Solid state is written as (s) symbol.
Aqueous state is writtenas (aq) symbol.

Now applying these symbols of physical state we have the balanced equation – I

3Fe (s) + 4H₂O (g) → Fe₃O₄ (s) + 4H₂(g)

// Here we see that H₂O is gaseous state it means it is water vapour or steam. //

Writing medium/condition in presence of which reaction takes place

Sometimes we write the reaction conditions like temperature, pressure and catalyst etc. i.e. heat, sunlight, catalyst like nickel, palladium, chlorophyll etc.

Examples:

(i)

(ii)

Precipitation Reaction:

What is Precipitation Reaction?

Any reaction that produces a precipitate can be called a precipitation reaction.

Na₂SO₄(aq) + BaCl₂(aq) → BaSO₂(s) + 2NaCl(aq)

(Sodium sulphate) + (Barium chloride) → (Barium sulphate) + (Sodium chloride)

The white precipitate of BaSO₄ is formed by the reaction of SO₄ and Ba. The other product formed is sodium chloride which remains in the solution.

This white precipitate BaSO4 is insoluble in water;

What is precipitate?

Precipitate: This insoluble substance formed is known as a precipitate.

Other Pages of this Chapter: 1. Chemical Reactions and Equations

1. Chapter 1. Chemical Reactions and Equations | Chemical Reaction

2. Chapter 1. Chemical Reactions and Equations | Writing A chemical equation

3. Chapter 1. Chemical Reactions and Equations | Balancing A Chemical Equation

4. Chapter 1. Chemical Reactions and Equations | Writing Symbols of physical states

5. Chapter 1. Chemical Reactions and Equations | Types of Chemical Reaction

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