Answer
Verified
396.3k+ views
Hint: A chemical reaction occurs between two compounds to give a product when they are allowed to come in contact. Such reactions are instant and do not require any activation. Quick lime is an oxide of calcium represented as \[CaO\].
Complete step by step answer:
Combination reaction is a class of chemical reaction which two or more reactants combine with each other to generate a single product. No side products are formed in such a class of reaction. Such reactions are normally exothermic in nature which means heat is released.
Combination reaction can be further classified into three types.
Reaction involving a metal and a nonmetal.
In this class of reaction a metal for example sodium metal reacts with a non metal like chlorine gas to produce an ionic compound i.e. sodium chloride.
\[2Na(s) + C{l_2}(g) \to 2NaCl(g)\]
Reaction in which a compound and an element is involved.
In this class of reaction an element such as oxygen reacts with a compound like carbon monoxide to generate carbon dioxide
${O_2}(g) + CO(g) \to C{O_2}(g)$
Reaction between two compounds.
In this class of reaction a compound like lithium oxide reacts with another compound such as carbon dioxide to yield lithium carbonate.
$LiO(s) + C{O_2}(g) \to LiC{O_3}(g)$
The combination reaction of quick lime and water gives calcium hydroxide. The reaction is vigorous and is highly exothermic in nature. The reaction of quicklime $CaO$ and water $H_2O$ can be shown as:
$CaO(s) + {H_2}O(l) \to Ca{(OH)_2}(s)$
Note: In reactions where two products are formed from two or more reactants, they are not referred to as combination reactions. Normal combustion reactions can also be referred to as combination reactions. For example, if carbon is burnt in presence of oxygen to give carbon dioxide on full combustion.
Complete step by step answer:
Combination reaction is a class of chemical reaction which two or more reactants combine with each other to generate a single product. No side products are formed in such a class of reaction. Such reactions are normally exothermic in nature which means heat is released.
Combination reaction can be further classified into three types.
Reaction involving a metal and a nonmetal.
In this class of reaction a metal for example sodium metal reacts with a non metal like chlorine gas to produce an ionic compound i.e. sodium chloride.
\[2Na(s) + C{l_2}(g) \to 2NaCl(g)\]
Reaction in which a compound and an element is involved.
In this class of reaction an element such as oxygen reacts with a compound like carbon monoxide to generate carbon dioxide
${O_2}(g) + CO(g) \to C{O_2}(g)$
Reaction between two compounds.
In this class of reaction a compound like lithium oxide reacts with another compound such as carbon dioxide to yield lithium carbonate.
$LiO(s) + C{O_2}(g) \to LiC{O_3}(g)$
The combination reaction of quick lime and water gives calcium hydroxide. The reaction is vigorous and is highly exothermic in nature. The reaction of quicklime $CaO$ and water $H_2O$ can be shown as:
$CaO(s) + {H_2}O(l) \to Ca{(OH)_2}(s)$
Note: In reactions where two products are formed from two or more reactants, they are not referred to as combination reactions. Normal combustion reactions can also be referred to as combination reactions. For example, if carbon is burnt in presence of oxygen to give carbon dioxide on full combustion.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Summary of the poem Where the Mind is Without Fear class 8 english CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Write an application to the principal requesting five class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE