chapter 3 oceanography

How much water is in the human body

• 30%

• 75%

• 50%

• 60%

How much water is in marines body's?

• 80+

• 15+

• 50+

• 30+

How much water is in Seajellys?

• 70%

• 50%

• 80%

• 95%

what are the 3 states of the water plant

• solid

• liquid

• mist
• steam
• gas

select all that are true about Ice formation  

• Ice can only form at temperatures below -10 degrees Celsius.
• water less dense as it freezes because hydro bonds stablizes and holds water molecules farther apart 

• Ice forms when water evaporates at high temperatures.
• few hydrogen bonds break with low temps  

      

select what's true about High Heat of vaporization  

• High temps = broken hydro bonds  

• All liquids have the same heat of vaporization.
• High heat of vaporization is irrelevant to boiling points.
• • Water requires tons energy to vaporize because hydro bond must be broken  

select what's true about water as a Solvent  

• Water is only a solvent for gases.
• Good at dissolving salt  

• Water is a poor solvent for most substances.
• Water cannot dissolve ionic compounds.

what is any iconic compound composed of?

• Molecules in a random arrangement.
• cations( positivly charged ions)  +   anions (negative ions)= neutral (without net charge) 

• Compounds that do not exist in nature.
• anions (negative ions) + cations( positivly charged ions) =neutral (without net charge) 

what are the 2 sources that the most salt from seawater comes from?

select all that are true

• • Rock on land  

• Evaporation of ocean water and volcanic eruptions
• Atmospheric precipitation and river runoff
• • Earth interior 

 Avg. Ocean salinity

• 35 psu

• 25 psu

• 40 psu

• 30 psu