Question

1. which type of reaction is shown by this equation? $2\\ agno_3(aq) + zn(s) \

ightarrow 2\\ ag(s) + zn(no_3)_2(aq)$
single replacement
double replacement
decomposition
synthesis

Explanation:

To determine the reaction type, we analyze the equation \( 2\text{AgNO}_3(\text{aq}) + \text{Zn}(\text{s})
ightarrow 2\text{Ag}(\text{s}) + \text{Zn(NO}_3\text{)}_2(\text{aq}) \). In a single - replacement reaction, one element replaces another in a compound. Here, zinc (Zn) is a solid metal and it replaces silver (Ag) in silver nitrate (\( \text{AgNO}_3 \)). The general form of a single - replacement reaction is \( \text{A}+\text{BC}
ightarrow\text{B}+\text{AC} \), which matches this equation (Zn is A, \( \text{AgNO}_3 \) is BC, Ag is B, and \( \text{Zn(NO}_3\text{)}_2 \) is AC). A double - replacement reaction involves the exchange of ions between two compounds, which is not the case here. A decomposition reaction is when a compound breaks down into simpler substances, and a synthesis reaction is when simpler substances combine to form a more complex compound, neither of which applies here.

Answer:

A. single replacement