I would say water; water is extremely polar, and this is why it can break one of the strongest bonds, ionic bonds. NaCl, as you probably know, is a salt, and dissolves in water. However, the ionic bond holding the Na+ and the Cl- is extremely strong; the boiling point of NaCl is at 1413 degrees celcius (water is at 100 degrees celcius). This means that it requires A LOT of energy to break the bond, but water is able to dissolve and break the bond very easily. It is very polar, so I would answer your question with water. And the bond connecting the H and the O is a covalent bond.
When warm air rises, cooler air will move in to replace it, so wind often moves from colder areas to warmer areas. The greater the difference between the high and low pressure or the shorter the distance between the high and low pressure areas, the faster the wind will blow
So the correct answer will be:
When a high and a low pressure air mass are far apart, air moves slowly from high to low pressure
Do you know the density?....
The
magnesium metal is highly reactive and can ignite in contact with moisture or
even air. The skin is usually covering in moisture, so the contact with it may cause
a reaction that can produce irritation, lesions and even burns.
Crucible
tongs are mandatory to handle hot crucibles to avoid skin burns and accidents
during experimental procedures. Crucible tongs work with the crucible; their shape
was designed to firmly hold it to avoid spills.
