CO2 and Ocean Acidification Concepts

The video explains the process of CO2 dissolving in water, similar to carbonation in soda. It describes the chemical reaction forming carbonic acid and highlights the equilibrium state. The video also discusses the environmental impact of increased CO2 levels, leading to ocean acidification, which negatively affects marine life.

What happens to CO2 when a soda can is opened?

• It dissolves more in the water.

• It escapes as bubbles.

• It reacts to form a solid.

• It remains unchanged.

What is formed when CO2 reacts with water?

• Carbon monoxide

• Hydrochloric acid

• Carbonic acid

• Sulfuric acid

How is the reaction between CO2 and water best described?

• A one-way reaction

• An equilibrium reaction

• A decomposition reaction

• A combustion reaction

What happens to carbonic acid in water?

• It forms a solid precipitate.

• It remains stable and unchanged.

• It dissociates, releasing hydrogen ions.

• It evaporates.

Why is the dissociation of carbonic acid significant?

• It makes the water more acidic.

• It increases the water's temperature.

• It decreases the water's density.

• It makes the water more alkaline.

What environmental issue is caused by increased CO2 absorption in oceans?

• Global warming

• Ocean acidification

• Ozone depletion

• Deforestation

How does ocean acidification affect marine life?

• It harms marine organisms like corals and dolphins.

• It has no effect on marine life.

• It makes the ocean more alkaline.

• It enhances coral growth.

What is a major source of increased CO2 in the atmosphere?

• Ocean currents

• Photosynthesis

• Burning fossil fuels

• Volcanic eruptions

What is the consequence of ocean acidification on the pH level?

• The pH level fluctuates randomly.

• The pH level remains constant.

• The pH level increases.

• The pH level decreases.