Solutions Chemistry

Which of the following would be classified as an electrolyte in aqueous solution?

• CH₃OH

• NaOH

• C₂H₄

• PbI₂

Tags

NGSS.HS-PS1-3

Is CuCl solube or insoluble?

• Soluble

• Insoluble

Tags

NGSS.HS-PS1-1

Which chemical would not be soluble in water?

• CH₃OH

• NaCl

• HCl

• iodine (I₂)

An electrolyte is...

• The rapid, random movement of particles due to magic.

• A substance that dissolves in water and conducts electric current.

• A substance that dissolves in water and does not conduct electric current.

• The solution process when water is the solvent.

The ___ is the thing being dissolved.

• solute
• solvent
• mixture
• suspension

A substance that dissolves but does NOT conduct electricity is:

• CH₃OH

• NaOH

• CuCl₂

• HCl

Since "like dissolves like", water and oil will not mix because

• both of them are polar

• both of them are nonpolar

• oil is polar and water is nonpolar

• oil is nonpolar and water is polar

Write dissociation equations for the following electrolytes. Show physical states of all species involved!
ZnCl₂

• ZnCl_2(s) --> Zn²⁺_(aq) + Cl^-_(aq)
• ZnCl_2(s) --> Zn⁺_(aq) + 2Cl^-_(aq)
• ZnCl_2(s) --> Zn²⁺_(aq) + 2Cl^-_(aq)
• ZnCl_2(s) --> Zn⁺_(aq) + Cl^-_(aq)

Tags

NGSS.HS-PS1-7

Which of the following is conductive, and has NO effect on litmus?

• C₁₁H₂₂O₁₁

• NaOH

• NaCl

• HCl

The following substances can NOT conduct electricity in water:

• Soluble ionic compounds

• Acids

• Bases

• Molecular

Tags

NGSS.HS-PS1-3