Understanding Electrolytes and Their Properties

What is an electrolyte?

• A substance that does not conduct electricity in solution.

• A substance that conducts electricity when dissolved in water.

• A substance that is insoluble in water.

• A substance that evaporates quickly.

Which of the following is a characteristic of strong electrolytes?

• They partially dissociate in solution.

• They do not dissociate in solution.

• They completely dissociate into ions in solution.

• They are non-conductive in solution.

Which of the following is a weak electrolyte?

• NaCl

• HCl

• KBr

What is the dissociation equation for sodium chloride (NaCl) in water?

Tags

NGSS.HS-PS1-3

Which of the following statements is true about the conductivity of electrolyte solutions?

• Strong electrolytes have low conductivity.

• Weak electrolytes have high conductivity.

• Strong electrolytes have high conductivity.

• Non-electrolytes have high conductivity.

What happens to the ions in a strong electrolyte solution?

• They remain bonded together.

• They partially dissociate.

• They completely dissociate.

• They form a precipitate.

Which of the following is a strong electrolyte?

• NaOH

Which of the following is NOT a characteristic of weak electrolytes?

• They partially dissociate in solution.

• They have low conductivity.

• They completely dissociate in solution.

• They exist in equilibrium between ions and molecules.

What is the primary factor that determines the conductivity of an electrolyte solution?

• The color of the solution.

• The temperature of the solution.

• The concentration of ions in the solution.

• The pH of the solution.

Tags

NGSS.HS-PS1-5