The reaction in which one or more substances combine or change into one or more substances or a new substance is known as a

Pick the odd one out:

it is an example of slow change while others are an example of fast change.

Which of the following vegetables change their color when exposed to air?

Match the following:

The substance where no new substance is formed is called

physical change is where no new substance is formed.

In the chemical reaction, products are present on which side of the arrow?

in a chemical reaction the products are present on our right hand side.

In the chemical reaction, reactants are present on which side of the arrow?

in a reaction reactants are present on our left hand side.

Choose the correct option which suits the puzzle

Blowing is a fast change
Milk has lactic acid
Iron reacts with air to form rust
Reaction occurs when combining substances.

Pich the odd one out:

others are different types of acid while, it is a vegetable.

chemical change is also calles chemic reaction.
Lumps are formed when milk curdles.
Lactic acid is the acid preaent in milk.
When iron is exposed to air, iron changes its colour to brownish colour.

Pick the odd one out

other are are example of physical change whereas, it is an example of chemical change.

What is formed when milk curdles?

Curd

What does the picture define?

the picture depicts the changes.

The following image defines which type of change?

water added to sand and cement is a chemical reaction as it causes hardening of concrete through hydration.

The representation of the relation between the reactant, when there is more than one substance

+ is used to represent when there are more than one reactants in a reaction.

Which of the following acids are present in milk?

The real acidity in milk is due to lactic acid.