Quiz 2 Electrolytes

When the ends of two wires, from a circuit containing a battery and a lightbulb, are placed into a beaker containing an aqueous solution the light bulb glows brightly. From this observation, you can conclude the solution is probably —

• a concentrated but weak base

• a strong acid

• a pH neutral sample of a polar compound

• an acid added to a base

Tags

NGSS.HS-PS1-2

Which of the following containers most likely contains sugar?

A B

• Container A because it forms ions.

• Container B because it forms ions.

• Container A because it does not form ions.

• Container B because it does not form ions.

Tags

NGSS.HS-PS1-2

Which of the following is a strong electrolyte when dissolved in water?

• NaNO₃

• C₂H₅OH

• C₁₂H₂₂O₁₁

• CH₄

Tags

NGSS.HS-PS1-1

Four chemical solutions are shown above. Which of the following solutions would correspond to a weak electrolyte?

• IV

• III

• II

• I and II

Tags

NGSS.HS-PS1-3

Solutions that conduct a current are called ____________ and are made from ___________ compounds.

• electrolytes; ionic

• nonelectrolytes; ionic

• electrolytes; molecular

• electrolytes; covalent

Tags

NGSS.HS-PS1-3

A dissolved solute that does not form ions is:

• a nonelectrolyte
• a weak electrolyte
• a strong electrolyte
• insoluble

An example of a nonelectrolyte is

• sugar water
• salt water
• sodium chloride
• hydrogen chloride

Which of the following is an electrolyte?

• CH4
• I2
• LiBr2
• CO

__________ are made up of solutes and solvents.

• Solutions
• Suspension
• Colloid

A strong electrolyte

• completely breaks into its ions in water.

• partly breaks into its ions in water.

• doesn't break into its ions in water.

• can't dissolve in water.