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Unit 4 Chapter 1 Review
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​An excess of _________ makes a solution _____________ with a pH greater than 7.​
hydroxide ions (OH‑), basic
​The ability of water molecules to "stick” together is known as __________ while the ability of water to "stick" to everything else is known as ____________..​
cohesion, adhesion
​As salinity increases, density _________ because the more dissolved substances in the water, the ________ the density.​
increases, higher
Water has a high heat capacity. What does this mean?
It means that water is able to absorb a significant amount of heat without a drastic increase in temperature.
​In a water molecule, the hydrogen atoms are slightly ________ charged and the oxygen atom is slightly _________ charged​
positively, negatively
​As water goes from 4°C toward its freezing point, the molecules of water _______ energy, but, rather than ________, they actually start to ____________.​
lose, contract, expand
How does the ocean maintain a stable pH?
It is the oceans natural ability to remove or release hydrogen ions to maintain a stable pH.
If the ocean becomes too acidic, then the free H ions would:
​If the ocean becomes too acidic, then the free H ions would combine with bicarbonate ions to form carbonic acid, ultimately increasing the pH.​
​Water remains a _________ at room temperature, ___________ at 100°C and ___________ at 0°C (at sea level)..​
liquid, boils, freezes.
If the pH of the Ocean rises, then carbonic acid would:
​ If the pH of the Ocean rises, then carbonic acid would more readily lose hydrogen ions ultimately lowering the pH again.  ​
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