Advertisements
Advertisements
Question
Fill in the blank.
A change, which alters the composition of a substances, is known as a___________ change.
Advertisements
Solution
A change, which alters the composition of a substances,iis known as a chemical change.
APPEARS IN
RELATED QUESTIONS
Explain the following giving an example.
Pure substance
Melting of solid (wax) is a physical change.
A physical change is temporary. Explain.
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
Photosynthesis cannot take place at night.
Separate the following into physical and chemical changes :
Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water
Classify the following as a physical or a chemical change.
Drying of wet clothes
Select the chemical changes from the following list of changes
The carbon cycle.
Natural changes which take place in nature on their own, are beyond the control of human being.
Water is known as a universal solvent. Why?
