Understanding Mercury: Properties, Reactions, and Uses

What is unique about mercury compared to other metals at room temperature?

• It is a gas.

• It is a solid.

• It is a plasma.

• It is a liquid.

Why does a copper coin float on mercury?

• Because mercury is less dense than water.

• Because mercury is less dense than copper.

• Because mercury is more dense than copper.

• Because mercury is more dense than water.

What happens when mercury is dissolved in nitric acid?

• It forms a blue solution.

• It forms a colorless gas.

• It forms mercury nitrate and a brown gas.

• It forms a solid precipitate.

What is the mercury heart reaction?

• A reaction where mercury evaporates.

• A reaction where mercury forms a solid.

• A reaction where mercury changes color.

• A reaction where mercury throbs like a heart.

Why is mercury no longer used in medicines?

• Because it is too rare.

• Because it is highly toxic.

• Because it is too expensive.

• Because it is ineffective.