16) A solution with a pH of 7 is
A) strongly acidic.
B) weakly acidic.
C) heutral.
D) weakly basic.
17) In ocean acidification, dissolving CO2 gas
A) lowers
B) does not affect
C) raises
D) triples
18) The figure below shows five water molecules. The hydrogen bonds shown in this figure are each betwe
A) A
B) B
C) C
D) D
A) two hydrogen atoms.
B) an oxygen and a hydrogen atom of the same water molecule.
C) an oxygen and a hydrogen atom of different water molecules.
D) two atoms with the same charge.
Calcification rate
(power)
lowest?
19) Below is a figure from an experiment that was performed to measure the effect of carbonate ion (CO32-
concentration on the calcification (growth) rate of coral reefs. At which point on the graph is the ocean pH t
20
the pH of the ocean.
10
0+
220
A
Hydrogen bond {\
(+)
260
240
[CO] (umol/kg of seawater)
(+)0**(-)
D
I. I
280