Advertisements
Advertisements
Question
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
Advertisements
Solution
Iron III oxide [Fe2O3x H20]
APPEARS IN
RELATED QUESTIONS
Try segregating the things around you as pure substances or mixtures.
State three differences between evaporation and boiling
Write true or false
Melting of ice is a physical change.
Write true or false
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
Given reason:
Burning of paper is a chemical change.
Give reasons why – separation of mixtures e.g. iron from a mixture of iron and sulphur is a physical change, but heating a mixture of iron and sulphur is considered a chemical change.
Give the reason why the following is considered as chemical changes.
Copper carbonate on heat gives copper oxide and carbon dioxide.
What type of energy changes is associated when ice melts?
Grinding of wheat grain changes its size. It is a ____________ change.
