chemical and physical properties of water test

why can water molecules mingle?

because water is a solvent and is polar (oxygen is negative and hydrogen is positive)

cohesion

water can stick to itself

adhesion

water sticks to other surfaces

what happens when water absorbs light

it heats up which is what causes some of it to evaporate.

what does PH affect?

the function of enzymes, metabolism, and growth.

how is salinity expressed?

in parts per thousand. water=30ppt

where is salinity high because of freezing?

the poles

where is salinity low because of precipitation?

the equator

what is the most soluble gas in sea water?

co2

what does the presence of bicarbonate do?

buffers sea water

what chemical is not a greenhouse gas?

nitrogen

what chemicals are greenhouse gasses?

CFC + Co2

formula for density

M/V

what is the maximum density of pure water?

40

halocline

rapid salinity change

thermocline

rapid heat change causing warm and cool water to mix

where is dry air located?

30 degrees North and South of latitude

what generates surface waves?

wind

fetch

the distance over which wind blows. More fetch = bigger waves

what chemicals are most abundant in water?

NaClCO3MgK Chloride, magnesium, potassium, and carbonate.

describe astronomical conditions of a spring tide

occur when the Earth, Moon, and Sun are aligned, which happens during a full or new moon.

predict next tide diurnal

a day later and 50 minutes (24hr 50)

predicting next time semi diurnal

12 hours later

diurnal

a tidal cycle that has one high tide and one low tide per lunar day

semi diurnal

a tidal cycle that occurs when an area experiences two high tides and two low tides of roughly equal size every lunar day