Question

1. choose the best answer. for their lab report, students must describe a chemical reaction in words. which of these would represent the correct word equation for this equation?

zn(s) + pb(no₃)₂(aq) → zn(no₃)₂(aq) + pb(s)
solid zinc and lead nitrogen oxide, dissolved in water, react to form aqueous zinc nitrate and solid lead.
solid zinc and lead nitrate, dissolved in water, react to form aqueous zinc nitrate and solid lead.
solid zinc and lead (ii) nitrite, dissolved in water, react to form aqueous zinc nitrite and solid lead (ii).
solid zinc and lead (ii) nitrate, dissolved in water, react to form aqueous zinc nitrate and solid lead.

Explanation:

First, identify the chemical species in the given equation:

• Reactants: Solid zinc ($\text{Zn}(s)$) and aqueous lead (II) nitrate ($\text{Pb(NO}_3\text{)}_2(aq)$, which is lead (II) nitrate dissolved in water).
• Products: Aqueous zinc nitrate ($\text{Zn(NO}_3\text{)}_2(aq)$) and solid lead ($\text{Pb}(s)$).

Match these to the options, ensuring the correct chemical names and states are used.

Answer:

Solid zinc and lead nitrate, dissolved in water, react to form aqueous zinc nitrate and solid lead.