Question

x+water=slaked lime. what is x. wrtie its chemical and common name. what is the type of reaction​

Answer 1

X is CaO or else best known as "quick lime".

CaO + H2O -----> Ca(OH)2

This is an example of combination reaction and it is highly exothermic.

Answer 2

Explanation:

Given -

• X + Water → Slaked lime

To Find -

• What is X
• Write its chemical and common name
• What is the type of reaction.

As we know that :-

• CaO + H2O → Ca(OH)2

Here,

Calcium oxide (lime or quicklime) reacts vigorously with water to form calcium hydroxide (slaked lime).

Note :-

Ca(OH)2 is also known as slaked lime.

Hence,

X is CaO (Calcium oxide)

Chemical name :-

• Calcium oxide

Common name :-

• Lime or Quicklime

This is the type of combination reaction.

Additional information :-

Types of chemical reaction :-

• Combination reaction -

Those reaction in which two or more substances combined to form a single substance, are called combination reaction.

Example -

C + O2 → CO2

• Decomposition reaction -

Those reaction in which a compound splits up into two or more simpler substances are known as decomposition reaction.

Example -

CaCO3 → CaO + CO2

• Displacement reaction -

Those reaction in which one element takes the place of another element in a compound, are known as Displacement reaction.

Example -

CuSO4 + Zn → ZnSO4 + Cu

• Double Displacement reaction -

Those reaction in which two compounds react by an exchange of ions to form two new compounds are called double displacement reaction.

Example -

AgNO3 + NaCl → AgCl + NaNO3