Sophist

Epsom salts are very stable - they are used as bulking agents and in paper making. It is amphoteric (dissolves in acids and bases) but it's main usees are laxitives or bath salts. The compound is ionic and very stable. It takes a huge amount of energy to melt the ctystal and this renders it unsuitable as an oxidising agent - the oxgens are just too difficult to "free up"...hope this helps?

WHen I was cutting a squash once, the seeds made my fingers red an itchy; we don't get a lot of squah in Northern Ireland so I haven't had any more experiences with squash but I rekon it's a chemical in the seeds. I know apple seeds contain cyanide...

Yeah:Drops of water condense, releasing the latent heat used to evaporate the liquid which provides the warm air of suporting the cloud. Eventually less heat is released as the droplets are larger and less condensation occurs. As a consequence, the drops of water plummet to earth. Hope this helps!

Rain is water, which has condensed around nuclei and accumulated to form large droplets. Clouds stay in the air because when the water condenses, latent heat is released which maintains the cloud in the atmosphere. Mist on the other hand, is a low-lying cloud made of much finer droplets. If the air is sufficiently saturated and there are sufficient nuclei present then the water may condense into a mist of fog. This happens when due point temperature is reached; ie: the temperature at which atmospheric moisture in the form of gas condenses to liquid. A fog and mist are quite similar. They develop when the ground (which is cooler than the air) causes the air to cool and the water to condense. Alternatively, a warm and cold body of air may meet, which will cause some of the warm air to cool and again, the gaseous moisture will condense. " Mist is a visibility between 1000 and 2000 metres. Normally, over land, forecasters use the word "fog" when the visibility is 200 metres or less."

Hello! Sodium deficiency is called hyponatremia. A shortage will upset the electrolyte balance in the body - have you studied osmoregulation in the kidneys? In plants, too much sodium displaces potassium and a shortage of potassium leads to browning and yellowing of leaf tips. Fruit and vegetables are the worst affected by an excess of sodium chloride/potassium deficiency. Sodium in the form of sodium chloride is used for osmoregulation in plants. Have you ever studied the transport of water up xylem vessels? Ions are actively transported into xylem vessels which lowers the water potential of the solution in the vessel, therefore drawing in more water so that the pressure forces water up the stem. Hope this helps! Georgina

Me too! This place is a plethora of wonder!

HELLO I'm a wee studenty type from Belfast, Northern Ireland. I'm not even at Uni yet but I aim to work in genetics so I thought I had better start reading up online : ) I spend all my money drinking expensive coffee in cafe's across the UK.