EL7 - Bonding, Structure, Properties and Precipitates Flashcards
Blood, Sweat and Seas
What is the charge on an ammonium (NH4) ion?
+1
What is the charge on a Zinc ion?
-2
What is the charge on a hydroxide ion?
-1
What is the charge on a nitrate (V) or nitrate ion?
NO3
-1
What is the charge on a hydrogen carbonate ion (HCO3)?
-1
What is the charge on an oxide (O) ion?
-2
What is the charge on a carbonate (CO3) ion?
-2
What is the charge on a sulfate (SO4) ion?
-2
What is the concentration of Na+ in seawater?
/mmol dm-3
470
/ mmol dm-3
What is the concentration of Na+ in blood cells?
/mmol dm-3
10
/mmol dm-3
What is the concentration of K+ in seawater?
/mmol dm-3
10
/mmol dm-3
What is the concentration of K+ in blood cells?
/mmol dm-3
150
/mmol dm-3
How do salts get into our seas and rivers?
By dissolving out of rocks.
Occasionally shallow seas form in hot climates, particularly over geological time.
When the water evaporates, what does it leave?
Large deposits of sold salts called evaporites.
Compounds of calcium:
soluble?
insoluble?
Insoluble
An INCREASE in atmospheric CO2 means that
MORE GAS DISSOLVES IN SEAWATER.
What does this result in?
This LOWERS pH of the SEA
which could result in CaCO2 SHELLS OF MARINE ANIMALS DISSOLVING,
with disastrous consequences to the marine ecosystem.
