Electrolytes

Mg ionizes to a charge of ______.

• +1

• +2

• -1

• -2

What makes a solution a STRONG electrolyte?

• A solution that contains a solute that fully ionizes in water.

• A solution that contains a solute that partially ionizes in water.

• A solution that contains a solute that doesn't ionize in water.

• A solution that is a solid at room temperature.

Which of the following is NOT an example of a strong electrolyte?

• Strong Acids

• Strong Bases

• Soluble Ionic Compounds

• Covalent Compounds

Which of the following is NOT a strong electrolyte?

• HCl

• CH₄

• NaOH

• NaCl

Which of the following is NOT an electrolyte?

• CH3CH2OH

• KOH

• CrCl3

• KI

According to the image, which of the following would represent a solution that contains sodium chloride, a soluble ionic compound?

• A (far left)

• B (middle)

• C (far right)

• None of the image represents sodium chloride added to water.

Tags

NGSS.HS-PS1-5

NGSS.HS-PS2-5

When table salt, NaCl, is dissolved in water, the sodium ions and the chloride ions separate from each other and get surrounded by water molecules. Which part of the water molecule would be attracted to the sodium ion ?

• Oxygen, the partially negative side of water.

• Hydrogens, the partially positive side of ion.

• Water wouldn't be attracted to the sodium ion.

• Water wouldn't be attracted to the chloride ion.

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

Draw an electrical conductivity probe in a solution with NaCl. Draw arrows to indicate the movement of the ions.

Tags

NGSS.HS-PS2-5

Which of the following is a characteristic of a strong electrolyte?

• A solution that fully dissociates into ions in water.

• A solution that partially dissociates into ions in water.

• A solution that does not dissociate into ions in water.

• A solution that is a solid at room temperature.

What happens to the conductivity of a solution when a strong electrolyte is added?

• Conductivity increases significantly.

• Conductivity decreases significantly.

• Conductivity remains unchanged.

• Conductivity fluctuates randomly.