Advertisements
Advertisements
प्रश्न
Select the chemical changes from the following list of changes
The carbon cycle.
Advertisements
उत्तर
The carbon cycle is a PHYSICAL change as carbon remains as carbon, the mass of carbon remains the same in the cycle, is temporary, and only changes in the state take place.
APPEARS IN
संबंधित प्रश्न
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
A physical change is temporary. Explain.
Classify the following changes as physical or chemical:- melting of a solid (wax)
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
State whether the following is physical or chemical changes.
photosynthesis —
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Sublimation is classified as a physical change. Why ?
What will you take into account while identifying the following?
A physical change in a substance.
Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –
The change of state of a substance from solid to liquid and liquid to gas is ______.
