Introduction to Aqueous Solutions

In the chemical equation below, which of the components is a precipitate?

HCl(aq) + AgNO3(aq) → AgCl(s) + HNO3(aq)

• AgCl(s)

• AgNO3(aq)

• HCl(aq)

• HNO3(aq)

What is the complete ionic equation for the following chemical equation?

BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)

• Ba2+(aq) + SO42−(aq) → BaSO4(s)

• Ba2+(aq) + 2Cl−(aq) + 2Na+(aq) + SO42−(aq) → 2Na+(aq) + 2Cl−(aq) + BaSO4(s)

• BaCl2(aq) + 2Na+(aq) + SO42−(aq) → 2Na+(aq) + 2Cl−(aq) + BaSO4(s)

• Ba2+(aq) + Cl−(aq) + Na+(aq) + SO42−(aq) → Na+(aq) + Cl−(aq) + BaSO4(s)

Tags

NGSS.HS-PS1-7

A solution consisting of one or more substances dissolved in water is called a(n) _________solution.

• aqueous

• watery

• heterogeneous

• no correct answer

Tags

NGSS.HS-PS1-5

The substance dissolved in a solvent is called a(n)

• solution

• solute

• solvent

• matter

Which is the term for the most plentiful substance in a solution?

• liquid

• solute

• precipitate

• solvent

Solute particles in aqueous solution are either ionic compounds that form

• element

• particles

• ions

• molecules

Which is the term for a solution consisting of one or more substances dissolved in water?

• aqueous solution

• heterogeneous mixture

• colloid

• solute

When two solutions containing ions as solutes are combined and a reaction occurs, it is always a single-replacement reaction.

• true

• false

Which is the correct complete ionic equation for the reaction of K2CO3(aq) with ZnCl2(aq) to form ZnCO3(s) and KCl(aq)?

• K+(aq) + CO32–(aq) + Zn2+(aq) + Cl–(aq) →

  K+(aq) + Cl–(aq) + ZnCO3(s)

• Zn2+(aq) + CO32–(aq) → ZnCO3(s)

• K2CO3(aq) + ZnCl2(aq) → ZnCO3(s) + 2KCl(aq)

• 2K+(aq) + CO32–(aq) + Zn2+(aq) + 2Cl–(aq) →

  2K+(aq) + 2Cl–(aq) + ZnCO3(s)

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Which describes an ionic compound dissolving in water?

• The compound dissociates into its negative and positive ions.

• Partial negative and positive charges are attracted to opposite sides of water molecules.

• Ions of opposite charge neutralize each other to form neutral molecules.

• Ionic bonds form to create formula units.

Tags

NGSS.HS-PS2-4