the conditions. (a reversible/an irreversible) 2. Burning of paper is process. (a reversible/an irrev 3. If the chemical property of a substance remains unchanged but its app shape changes, it is called a change. (chemical/ph 4. Cutting of iron rod into pieces is a change. (chemic 5. In a change, only physical properties of a substar (chemical/physical) C. State whether the following statements are true (T) or false (F). 1. All the changes in nature are reversible. 2. A reversible change is a permanent change. 3. Substances increase in size on heating. 4. Curdling of milk is an example of reversible change. 5. Iron becomes soft on cooling. D. Identify the following changes as reversible or irreversible. 1. Ripening of fruits 2. Changing of water to ice
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Aidez mois svp. C'est une tâche sur la construction d'un graphique la croissance d'une
population de bactéries dans les 2h qui suivent une contamination par une
seule cellule bactérienne.
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2. irreversible
3. physical change
4. physical change
T/F
1. false
2. false
3. true
4. false
5. false
1. irreversible
2. reversible
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