Question
Hint:
Chemical change
Melting
Physical change
Rusting
7.Chemical change is the change where a reaction happens and a new substance is formed.
8. Melting is the example of physical change.
9. Physical change is where no new substance is formed.
10. Rusting is the example of chemical change.
Related Questions to study
Match the following according to the changes given through the images:
1 is a chemical change
2 is a fast change
3 is a physical change.
Match the following according to the changes given through the images:
1 is a chemical change
2 is a fast change
3 is a physical change.
Pick the odd one out:
it is a slow change whereas, the others are example of fast change.
Pick the odd one out:
it is a slow change whereas, the others are example of fast change.
Pick the odd one out:
it is a chemical change whereas, the others are example of physical changes.
Pick the odd one out:
it is a chemical change whereas, the others are example of physical changes.
The substance where there is a change in the shape and size are known as:
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
The substance where there is a change in the shape and size are known as:
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
Cutting of paper is reversible, but the burning of paper is a/an:
burning of paper is an irreversible reaction.
Cutting of paper is reversible, but the burning of paper is a/an:
burning of paper is an irreversible reaction.
Which of the following is the example of fast reactions?
all the given pictures are an example of fast reactions.
Which of the following is the example of fast reactions?
all the given pictures are an example of fast reactions.
The image in the following defines what type of change?
Blowing of candles is a fast change.
The image in the following defines what type of change?
Blowing of candles is a fast change.
Chemical change is a change where a __________ substance is formed.
A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.
Chemical change is a change where a __________ substance is formed.
A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.
Match the following:
melting of ice-cream is a physical change.
Burning of paper is an irreversible change.
Baking of cookies is a chemical change.
Hair growth is a slow change.
Match the following:
melting of ice-cream is a physical change.
Burning of paper is an irreversible change.
Baking of cookies is a chemical change.
Hair growth is a slow change.
Which one of the following is not an example of chemical change:
it is a physical reaction as it is reversible.
Which one of the following is not an example of chemical change:
it is a physical reaction as it is reversible.
The substance which undergoes changes and a new substance is formed is known as:
Cbemical changes occur when a new substance combines with another to form a new substance.
The substance which undergoes changes and a new substance is formed is known as:
Cbemical changes occur when a new substance combines with another to form a new substance.
Match the following:
| (1) Cutting of paper | (a) Physical Change |
| (2) Curdling of milk | (b) Chemical change |
| (3) Burning of tree | |
| (4) Boiling of water | |
| (5) Rusting of iron |
cutting of paper andboiling of water are physical changes as no new substance is formed.
Match the following:
| (1) Cutting of paper | (a) Physical Change |
| (2) Curdling of milk | (b) Chemical change |
| (3) Burning of tree | |
| (4) Boiling of water | |
| (5) Rusting of iron |
cutting of paper andboiling of water are physical changes as no new substance is formed.
The following picture defines which one of the following changes?
As digestion is irreversible hence, it is a chemical change.
The following picture defines which one of the following changes?
As digestion is irreversible hence, it is a chemical change.
Which one of the following is an example of physical change?
others are irreversible changes whereas, it is reversible.
Which one of the following is an example of physical change?
others are irreversible changes whereas, it is reversible.
Chemical change is also called as:
A process in which one or more substances, the reactants, are converted to one or more different substances, the products, is known as chemical reaction.
Hence, chemical change is also known as chemical reaction.
Chemical change is also called as:
A process in which one or more substances, the reactants, are converted to one or more different substances, the products, is known as chemical reaction.
Hence, chemical change is also known as chemical reaction.
