Precipitation Reactions & Net Ionic Equations

What is the chemical equation for the reaction between silver nitrate and sodium chloride?

• AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)

• AgNO3(aq) + NaCl(aq) → AgNO3(s) + NaCl(aq)

• AgCl(aq) + NaNO3(aq) → AgNO3(aq) + NaCl(s)

• AgNO3(s) + NaCl(aq) → AgCl(aq) + NaNO3(s)

What are spectator ions?

• Ions that participate in the chemical reaction

• Ions that remain unchanged and do not participate in the chemical reaction

• Ions that are produced as a result of the reaction

• Ions that are always negatively charged

How do you identify a precipitate in a reaction?

• By observing the color change of the solutions.

• By measuring the temperature of the reaction.

• By observing the formation of a solid when two solutions are mixed.

• By checking the pH of the resulting solution.

What is the role of solubility rules in precipitation reactions?

• Solubility rules help predict whether a precipitate will form when two ionic compounds are mixed.

• Solubility rules determine the color of the precipitate formed in a reaction.

• Solubility rules indicate the temperature at which a precipitate will dissolve.

• Solubility rules are used to calculate the exact amount of reactants needed for a reaction.

What is the outcome of mixing potassium iodide and lead(II) nitrate?

• A yellow precipitate of lead(II) iodide (PbI2) forms.

• A clear solution of potassium nitrate is produced.

• A white precipitate of lead(II) hydroxide forms.

• A gas is released during the reaction.

Which reaction results in the formation of a precipitate: AgNO3(aq) + NaOH(aq)→, BaNO3(aq) + CaCl2(aq)→, NaNO3(aq) + KOH(aq)→?

• AgNO3(aq) + NaOH(aq)→

• BaNO3(aq) + CaCl2(aq)→

• NaNO3(aq) + KOH(aq)→

• KCl(aq) + NaNO3(aq)→

What is an aqueous solution?

• A solution that contains only solid substances.

• A solution that is made up of gases only.

• A solution where water has another compound dissolved in it.

• A solution that is completely free of any solutes.

Tags

NGSS.MS-ESS2-4

What happens when a soluble salt is mixed with an insoluble salt?

• The soluble salt will dissolve, while the insoluble salt will remain as a solid precipitate.

• Both salts will dissolve completely in the solution.

• The insoluble salt will dissolve, while the soluble salt will remain as a solid.

• A gas will be produced during the reaction.

What is the significance of the reactivity series in precipitation reactions?

• It determines the color of the precipitate formed.

• It helps identify the solubility of compounds.

• It helps determine which metals can displace others in reactions.

• It indicates the temperature at which reactions occur.

What is the formula of the precipitate formed when Pb(NO3)2(aq) and K2SO4(aq) are mixed?

• PbSO4

• KNO3

• K2Pb(SO4)2

• Pb(NO3)2

Tags

NGSS.HS-PS1-3