Q2 of 22 Page 45

Write answers to the following.

Explain the similarity and difference in two events, namely adding NaOH to water and adding CaO to water.

Reaction between NaOH and water: NaOH + H2O → Na+ + OH-


Reaction between CaO and water : CaO + H2O → Ca(OH)2 + heat



More from this chapter

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2

Write answers to the following.

Explain the term reactant and product giving examples.

 2

Write answers to the following.

Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.

 3

Explain the following terms with examples.

Endothermic reaction

 3

Explain the following terms with examples.

Combination reaction