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प्रश्न
Select the chemical changes from the following list of changes
The carbon cycle.
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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.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Changes in which only ______ properties of a substance change are called physical changes.
Write short answer.
Give two examples of periodic changes
State whether the following is physical or chemical changes.
mixing oil with water —
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Which of the following are physical changes and which are chemical changes ?
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Compare the energy changes involved during a physical and a chemical change.
Analogy:
Melting of ice: Physical change.
Popping of popcorn: ______.
