Question

3. The mass of a substance undergoing a physical change is not altered.4. Heat is absorbed when glucose is dissolved in water,5. Heat is evolved when concentrated hydrochloric acid is poured into water.6. The slaking of lime is an endothermic change.state T OR F​

Answer 1

Answer:

3. true

4. true

5. false

6.false

Explanation:

5. it is false because when alkali is poured into the water then heat envolved.

6. it is false because the slaking of lime is exothermic change.