Net Ionic Equations

An aqueous solution is:

• any liquid with another compound dissolved in it.

• an ionic compound with water dissolved in it.

• water with another compound dissolved in it.

• none of the above

Which of the following compounds is SOLUBLE?

• copper carbonate

• calcium carbonate

• potassium carbonate

• strontium carbonate

Tags

NGSS.HS-PS1-1

When solid NaCl is stirred into water, which of the following is NOT true?

• Individual sodium and chloride ions are present.

• The solution will conduct electricity.

• The solution will taste salty.

• The NaCl will fail to dissociate (separate into ions)

Tags

NGSS.HS-PS2-5

In writing the chemical equation for a reaction that produces a precipitate, what abbreviation of the physical state must appear with one of the products?

• (s)

• (g)

• (l)

• (w)

What would be the formula of the precipitate that forms when Pb(NO₃)₂ (aq) and K₂SO₄ (aq) are mixed?

• K(NO₃)₂

• PbSO₄

• PbK₂

• H₂O

Considering the following precipitation reaction:

Pb(NO₃)₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq)

Which compound would not form ions in the complete ionic equation?

• PbI2

• KNO₃

• Pb(NO₃)₂

• KI

Considering the following precipitation reaction:

Pb(NO₃)₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq)

What is the correct complete ionic equation?

• Pb²⁺ + (NO₃)₂^- + 2K⁺ + 2I^- → PbI₂(s) + 2K⁺ + 2NO₃^-

• Pb²⁺ + 2NO₃^- +2K⁺ + I^- → PbI₂(s) + 2K⁺ + NO₃^-

• Pb²⁺ + 2NO₃^- + 2K⁺ + 2I^- → PbI₂(s) + 2K⁺ + 2NO₃^-

• Pb²⁺ + 2NO^3- + 2K⁺ + 2I^- → Pb²⁺ + 2I^- + 2K⁺ + 2NO₃^-

Tags

NGSS.HS-PS1-2

When some ionic compounds form through reactions in solution, they fall out as a ___

• consolidated element

• heavy sludge

• dense discharge

• solid precipitate

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-5

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

Tags

NGSS.HS-PS1-7

Which of the following does NOT form a precipitate?

• Pb(NO₃)₂(aq) + 2KI(aq) →
• Sr(NO₃)_{2 (aq)} + K₂SO_4(aq) →
• AgNO₃(aq) + Na₂S(aq) →
•  Pb(NO₃)₂(aq) + AgNO₃(aq) →