9.7 Ocean Acidification

What is the chemical formula for bicarbonate?

• HCO₃^-

• CO₃^2-

• H₂CO₃

• CO₂

Tags

NGSS.MS-PS1-1

What is the chemical formula for carbonic acid?

• HCO₃^-

• CO₃^2-

• H₂CO₃

• CO₂

A decrease in pH means all of the following EXCEPT

• acidification

• more H⁺ ions

• fewer OH^- ions

• neutralization

How does ocean acidification affect marine organisms with calcium carbonate shells?

• shells dissolve as the carbonate combines with hydronium to make bicarbonate

• thickening of shells as layer of carbonic acid coats the organisms

• increases resilience to predation

• coral bleaching due to the lower pH range in the ater

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS4-5

What is the primary reason the ocean is becoming more acidic?

• Burning of fossil fuels releasing more CO₂

• Oil spills from offshore drilling and transport

• CO₂ seepage from deep seafloor vents

• Runoff from chemical plants in coastal areas

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

What is the chemical formula for carbonate?

• HCO₃^-

• CO₃^2-

• H₂CO₃

• CO₂