Advertisements
Advertisements
Question
What is a chemical change? Give two examples of chemical change?
Advertisements
Solution
A chemical change is a permanent change in which the chemical composition of a substance is changed and a new substance is formed.
Examples:
Heating of copper carbonate
Formation of curd from milk
APPEARS IN
RELATED QUESTIONS
Is kerosene an electrolyte or a non-electrolyte ?
Write true or false :
Hydrogen sulphide has rotten egg smell .
Explain the following reaction with one suitable example of Decomposition reaction
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 + Cu
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Explain the term reactant and product giving examples.
Give balanced equation for the following conversion affected by heat alone on the substance:
Hydrated copper sulphate to sulphur dioxide
State the following reaction represent oxidation or reduction.
\[\ce{Cl- ->Cl}\]
A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?
Beating an egg to make a cake is a ______.
