Ocean acidification is caused by an influx of dissolved carbon dioxide. As atmospheric CO2 levels increase due to anthropogenic causes, dissolved CO2 also increases, which in turn decreases the pH of water.
Also to know is, what happens when you mix water and carbon dioxide?
The molecules of carbon dioxide reacted with the water, forming carbonic acid, and changed the color of the indicator. Tell students that they have seen carbon dioxide gas from your breath and carbon dioxide gas from carbonated water turn an indicator solution acidic.
What is the reaction of co2 h2o?
You can form carbonic acid: H2O + CO2 = H2CO3. (The = here indicates an equilibrium). An example is a sealed bottle of soda water, which contains carbonic acid. As you break the seal, the pressurized gas containing CO2 escapes.
How does carbon dioxide affect the water?
Oceans play an important role in keeping the Earth's carbon cycle in balance. As the amount of carbon dioxide in the atmosphere rises, the oceans absorb a lot of it. In the ocean, carbon dioxide reacts with seawater to form carbonic acid. This causes the acidity of seawater to increase.