Question

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

Explanation:

Step1: Analyze the first reaction

For the reaction \(2NaCl \to 2Na+Cl_{2}\), one compound (\(NaCl\)) breaks down into two simpler substances (\(Na\) and \(Cl_{2}\)). This is the definition of a decomposition reaction.

Step2: Analyze the second reaction

For the reaction \(2Na + Cl_{2}\to2NaCl\), two substances (\(Na\) and \(Cl_{2}\)) combine to form one compound (\(NaCl\)). This is the definition of a combination reaction.

Step3: Analyze the third reaction

For the reaction \(Li+NaCl\to LiCl + Na\), one element (\(Li\)) replaces another element (\(Na\)) in a compound (\(NaCl\)). This is the definition of a single - displacement reaction.

Step4: Analyze the fourth reaction

For the reaction \(AgNO_{3}+NaCl\to AgCl+NaNO_{3}\), the cations (\(Ag^{+}\) and \(Na^{+}\)) and anions (\(NO_{3}^{-}\) and \(Cl^{-}\)) of two ionic compounds exchange places. This is the definition of a double - displacement reaction.

Answer:

\(2NaCl \to 2Na+Cl_{2}\): Decomposition; \(2Na + Cl_{2}\to2NaCl\): Combination; \(Li+NaCl\to LiCl + Na\): Single displacement; \(AgNO_{3}+NaCl\to AgCl+NaNO_{3}\): Double displacement