Question

est your knowledge question 3
combination
decomposition
2nacl→2na+cl₂
double displacement
single displacement
2na+cl₂→2nacl
li+nacl→licl+na
agno₃+nacl→agcl+nano₃

Explanation:

Step1: Analyze the first reaction

A decomposition reaction is a reaction where a single compound breaks down into two or more simpler substances. For the reaction \(2NaCl
ightarrow2Na + Cl_{2}\), one compound \(NaCl\) is breaking down into two elements \(Na\) and \(Cl_{2}\). So, this is a decomposition reaction.

Step2: Analyze the second reaction

A combination reaction is a reaction where two or more substances react to form a single product. For the reaction \(2Na+Cl_{2}
ightarrow2NaCl\), two elements \(Na\) and \(Cl_{2}\) are combining to form a single compound \(NaCl\). So, this is a combination reaction.

Step3: Analyze the third reaction

A single - displacement reaction is a reaction where one element replaces another element in a compound. For the reaction \(Li + NaCl
ightarrow LiCl+Na\), the element \(Li\) is replacing \(Na\) in the compound \(NaCl\). So, this is a single - displacement reaction.

Step4: Analyze the fourth reaction

A double - displacement reaction is a reaction where the positive and negative ions of two ionic compounds exchange places. For the reaction \(AgNO_{3}+NaCl
ightarrow AgCl + NaNO_{3}\), the \(Ag^{+}\) from \(AgNO_{3}\) and \(Na^{+}\) from \(NaCl\) are exchanging their anions (\(NO_{3}^{-}\) and \(Cl^{-}\)). So, this is a double - displacement reaction.

Answer:

\(2NaCl
ightarrow2Na + Cl_{2}\): Decomposition; \(2Na+Cl_{2}
ightarrow2NaCl\): Combination; \(Li + NaCl
ightarrow LiCl+Na\): Single displacement; \(AgNO_{3}+NaCl
ightarrow AgCl + NaNO_{3}\): Double displacement.