FILL IN THE BLANKS1. A...............change is a temporary change.2. I

1.	FILL IN THE BLANKS1. A...............change is a temporary change.2. In a.................. reaction heat energy is absorbed.3. In a double decomposition precipitation reaction both the reactants must be...............soluble.4. In a................. reaction, an acid reacts with a base to form salt and water as the only products.5. Distillation is a method of obtaining pure............. from a solution.6. On reaction with sulphuric acid solution, barium chloride forms a white precipitate of...............sulphate.7. ..............electrolytes dissociate completely in aqueous state and allow large amount of electricity to flow through it.8. Negatively charged ions are called................9. In a............... change, new substances are formed.10. The new substances formed during a chemical reaction are called the..............11. Positively charged ions are called..............
Answer» 1. A physical change is a temporary change. 2. In a endothermic reaction heat energy is absorbed. 3. In a double decomposition precipitation reaction both the reactants must be water soluble. 4. In a neutralization reaction, an acid reacts with a base to form salt and water as the only products. 5. Distillation is a method of obtaining pure solvant from a solution. 6. On reaction with sulphuric acid solution, barium chloride forms a white precipitate of barium sulphate. 7. Strong electrolytes dissociate completely in aqueous state and allow large amount of electricity to flow through it. 8. Negatively charged ions are called anions. 9. In a chemical change, new substances are formed. 10. The new substances formed during a chemical reaction are called the products. 11. Positively charged ions are called cations.

FILL IN THE BLANKS1. A...............change is a temporary change.2. In a.................. reaction heat energy is absorbed.3. In a double decomposition precipitation reaction both the reactants must be...............soluble.4. In a................. reaction, an acid reacts with a base to form salt and water as the only products.5. Distillation is a method of obtaining pure............. from a solution.6. On reaction with sulphuric acid solution, barium chloride forms a white precipitate of...............sulphate.7. ..............electrolytes dissociate completely in aqueous state and allow large amount of electricity to flow through it.8. Negatively charged ions are called................9. In a............... change, new substances are formed.10. The new substances formed during a chemical reaction are called the..............11. Positively charged ions are called..............

Answer»

1. A physical change is a temporary change.

2. In a endothermic reaction heat energy is absorbed.

3. In a double decomposition precipitation reaction both the reactants must be water soluble.

4. In a neutralization reaction, an acid reacts with a base to form salt and water as the only products.

5. Distillation is a method of obtaining pure solvant from a solution.

6. On reaction with sulphuric acid solution, barium chloride forms a white precipitate of barium sulphate.

7. Strong electrolytes dissociate completely in aqueous state and allow large amount of electricity to flow through it.

8. Negatively charged ions are called anions.

9. In a chemical change, new substances are formed.

10. The new substances formed during a chemical reaction are called the products.

11. Positively charged ions are called cations.

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