Convert the following into balanced equations: When lead(ll) nitrate solution is added to potassium iodide solution, solid lead(ll) iodide forms and potassium nitrate solution remains.

The solubility of lead nitrate at $100^{\circ} \mathrm{C}$ is $140.0 \mathrm{~g} / 100 \mathrm{~g}$ water. A solution at $100^{\circ} \mathrm{C}$ consists of $57.0 \mathrm{~g}$ of lead nitrate in $64.0 \mathrm{~g}$ of water. When the solution is cooled to $10^{\circ} \mathrm{C}, 25.0 \mathrm{~g}$ of lead nitrate crystallize out. What is the solubility of lead nitrate in $\mathrm{g} / 100 \mathrm{~g}$ water at $10^{\circ} \mathrm{C}$ ?

Now, identify the context clues in each sentence that helped you guess the correct missing word.

Balance the following combustion reaction:

$$\ce{C2H6 (g) + O2(g) \longrightarrow CO2 (g) + H2O (g)}$$

Convert the following into balanced equations: When nitrogen dioxide is bubbled into water, a solution of nitric acid forms and gaseous nitrogen monoxide is released.

Write the balanced chemical equations for the following double-replacement reactions. Aqueous sodium oxalate and aqueous lead(II) nitrate react to produce solid lead(II) oxalate and aqueous sodium nitrate.

Write balanced chemical equations for the following reactions. Aqueous lead(II) nitrate reacts with aqueous potassium iodide to produce solid lead(II) iodide and aqueous potassium nitrate.

Write the balanced chemical equation for each of these reactions. Include phases.

a) When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms

b) However, when additional aqueous hydroxide is added the precipitate redissolves forming a soluble Pb(OH)₄^2–(aq) complex ion.

Lead(II) nitrate reacts with potassium iodide to produce lead(II) iodide and potassium nitrate. If 1.23 mg of lead nitrate are consumed, what is the mass of the potassium nitrate produced?

Solid silicon dioxide, often called silica, reacts with hydrofluoric acid (HF) solution to produce the gas silicon tetrafluoride and water. Write the balanced chemical equation for the reaction.

You add an aqueous solution of lead nitrate to an aqueous solution of potassium iodide. Draw highly magnified views of each solution individually and the mixed solution, including any product that forms. Write the balanced equation for the reaction.

Lead(II) nitrate is added slowly to a solution that is $0.020 \mathrm{M}^{\text {in }} \mathrm{Cl}^{-}$ions. Calculate the concentration of $\mathrm{Pb}^{2+}$ ions (in mol/L) required to initiate the precipitation of $\mathrm{PbCl}_2$. $\left(K_{\text {sp }}\right.$ for $\mathrm{PbCl}_2$ is $2.4 \times 10^{-4}$.)

When sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. However, when additional sodium hydroxide is added, the precipitate redissolves, forming a soluble $\left[\mathrm{Pb}(\mathrm{OH})_4\right]^{2-}(a q)$ complex ion. Write the balanced chemical equation for each of these reactions.

Menthol $( \mathscr { M } = 156.3 \mathrm { g } / \mathrm { mol } )$. a strong-smelling substance used in cough drops, is a compound of carbon, hydrogen, and oxygen. When 0.1595 g of menthol was subjected to combustion analysis, it produced 0.449 g of CO2, and 0.184 g of H2O. What is menthol's molecular formula?