Properties and Behavior of Sodium Hydroxide

The video explores whether NaOH is a strong or weak base. It explains that NaOH is a strong base because it dissociates completely in water, releasing Na+ and OH- ions. This dissociation is what gives NaOH its basic properties. The video concludes by affirming that NaOH is indeed a strong base.

What characteristic of sodium hydroxide pellets might suggest they are a strong base?

• They are dangerous and corrosive.

• They are sweet-smelling.

• They are colorful.

• They are soft and malleable.

What happens to NaOH when it is added to water?

• It dissociates into Na+ and OH- ions.

• It forms a solid precipitate.

• It evaporates immediately.

• It changes color.

Which ions are produced when NaOH dissociates in water?

• H+ and OH-

• K+ and OH-

• Na+ and OH-

• Na+ and Cl-

What gives NaOH its basic properties?

• The presence of Cl- ions

• The presence of OH- ions

• The presence of Na+ ions

• The presence of H+ ions

Why is NaOH considered a strong base?

• It does not dissociate in water.

• It forms a weak acid in water.

• It partially dissociates in water.

• It completely dissociates in water.

What is the role of the hydroxide ion (OH-) in NaOH's basic properties?

• It evaporates quickly.

• It changes color.

• It neutralizes acids.

• It forms a gas.