Question

Identify the displacement reaction from the following reactions. a. CaO + SiO2 -> CaSiO3 b. Cu + 2AgNO3 -> Cu(NO3)2 + 2Ag c. CaCO3 -> CaO + CO2 d. C + O2  CO2​

Answer 1

Answer:

b. Cu + 2AgNO3 ---- Cu(NO3)2 + 2Ag

This a displacement reaction as, Cu metal is more reducing than Ag and able to displace Ag salts.

hope this will help you.

Answer 2

Answer:

Answer:

For a: The reaction is combination reaction.

For b: The reaction is neutralization reaction.

For c: The reaction is single displacement reaction.

For d: The reaction is decomposition reaction.

Explanation:

For a:

A combination reaction is a type of chemical reaction in which two or more substances join together to form a single molecule. General equation for this reaction is:

A+B\rightarrow ABA+B→AB

So, CaO+SiO_2\rightarrow CaSiO_3CaO+SiO2→CaSiO3 is an example of combination reaction.

For b:

A neutralization reaction is a type of chemical reaction in which an acid reacts with a base to produce a salt ans water molecule. General equation for this reaction is:

HX+BOH\rightarrow BX+H_2OHX+BOH→BX+H2O

So, KOH+HCl\rightarrow KCl+H_2OKOH+HCl→KCl+H2O is an example of neutralization reaction.

For c:

A single displacement reaction is a type of chemical reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction. General equation for this reaction is:

A+BC\rightarrow AC+BA+BC→AC+B

where, A is more reactive than B.

So, Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2AgCu+2AgNO3→Cu(NO3)2+2Ag is an example of single displacement reaction.

For d:

Decomposition reaction is a type of chemical reaction in which a single molecule breaks down into two or more molecules. General equation for this reaction is:

AB\rightarrow A+BAB→A+B

So, BaCO_3\rightarrow BaO+CO_2BaCO3→BaO+CO2 is an example of decomposition reaction.

Explanation:

Answer:

For a: The reaction is combination reaction.

For b: The reaction is neutralization reaction.

For c: The reaction is single displacement reaction.

For d: The reaction is decomposition reaction.

Explanation:

For a:

A combination reaction is a type of chemical reaction in which two or more substances join together to form a single molecule. General equation for this reaction is:

A+B\rightarrow ABA+B→AB

So, CaO+SiO_2\rightarrow CaSiO_3CaO+SiO2→CaSiO3 is an example of combination reaction.

For b:

A neutralization reaction is a type of chemical reaction in which an acid reacts with a base to produce a salt ans water molecule. General equation for this reaction is:

HX+BOH\rightarrow BX+H_2OHX+BOH→BX+H2O

So, KOH+HCl\rightarrow KCl+H_2OKOH+HCl→KCl+H2O is an example of neutralization reaction.

For c:

A single displacement reaction is a type of chemical reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction. General equation for this reaction is:

A+BC\rightarrow AC+BA+BC→AC+B

where, A is more reactive than B.

So, Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2AgCu+2AgNO3→Cu(NO3)2+2Ag is an example of single displacement reaction.

For d:

Decomposition reaction is a type of chemical reaction in which a single molecule breaks down into two or more molecules. General equation for this reaction is:

AB\rightarrow A+BAB→A+B

So, BaCO_3\rightarrow BaO+CO_2BaCO3→BaO+CO2 is an example of decomposition reaction.