Why water is wet and mercury is not ?
540040
mercury is the heaviest medal/ water is hydrogen and oxygen
809082
Water is a combination of 2 hydrogen atoms and 1 oxygen atom: H2O.\nnot H2O2!!!!!
803888
They actually behave similarly in water.  But it seems like a big difference because of the explosive reaction that occurs when Na comes in contact with water.  Mg also reacts with water, but to a much lesser extent.\n\nThe basic reason is reactivity.  Na is very unstable.  It's so unstable that it must be stored in the absence of oxygen.  Being located near the upper left hand corner of the periodic table, It wants to lose an electron to reach the electron configuration of Ne.  Mg is significantly more stable because you would need to remove its 2 valence electrons to reach noble gas configuration.  You can see the quantitative relationship of this by looking up the ionization energies of Na and Mg.  You'll see that the IE of Na is very small, while the first IE of Mg is significantly larger.  The second IE of Mg should be relatively small, but there is a barrier to that due to the first IE.
677445
A water molecule contains two elements: hydrogen and oxygen. Both elements have different electronegativities, which is a fancy word meaning how well they can attract electrons. Since oxygen has a higher electronegativity, it forces the electrons of the water molecule toward itself, giving the oxygen element a slight negative charge and the hydrogen atoms slight positive charges.\nBasically speaking, water itself is somewhat charged. This makes water what is called a polar molecule and allows it to conduct electricity. This also accounts for how well water adheres to itself (cohesion).\nHowever, this polarity is relatively small.
173075
It is in "tidal lock" with the earth.  Over the eons, its rotational speed has been slowed down to synch up with its orbit of earth.  Mercury is in tidal lock with the sun as well.  One side of Mercury is always extremely hot, and the other side is extremely cold, despite it being the closest planet to the sun.
193788
water has an angular geometry instead of linear. that is the main reason water is a liquid at room temp instead of being a gas. it is also why water is polar instead of nonpolar.  and b/c water will hydrogen bond with other molecules it has a relatively high boiling point.
83439
Because water has a high SPECIFIC HEAT VALUE (C=J/gC) which just means that it can absorb a realitivy high ammount of heat (J=jouls) and keep its overall mass (g=grams) about the same temperature (C=celsius)\n\nits like 4.186 J/gC or somin i think, which is very high, while steel is only .113 J/gC
726971
h2o has a higher specific heat, meaning it takes a greater amount of energy to change the temperature of the h2o than the metal.  That is why it takes a long time for lakes to freez, ect.
46530
it's the same reason that if you mix oil and water in a glass, the oil will float to the top and the water will sink to the bottom.  oil has a lower density, which makes it lighter.  the heavier water gets pulled down by gravity and it displaces the oil.  since it is a liquid, the molecules of oil and water can move relative to each other.\n\nthe inside of the earth is a liquid, too - it is very hot and all but the outer surface of the earth is molten rock.  this has over time allowed the lighter minerals like quartz and feldspar to rise to the surface, while the heavier minerals like nickel and iron make up the earth's core.
182763
mrcury...cause mercury has more specific gravity than a steel and water, meaning to say mercury will settle down and steel will float on it ...i think water has 1 s.g and mercury has 13.6 s.g. not sure bout steel...
948742
Mercury based thermometers would be physics as chemistry\nimplies one component being a catalyst for another object/component implementing change to original structure and composition.  The mercury lowers and rises due to an outside energy/force but the chemical, mercury, does not change its properties.
258479
Water is H2O. Two hydrogen and one oxygen. Water is the universal solvent because it mixes well with most substances. Water is the most common and mysterious substances on earth. Water is suppose to be a gas ,but it's a liquid at room temperature. Water has a negative side (oxygen) and a positive side (hydrogen). This is another reason why water is the universal solvent it can dissolve just about any solute because the H and O are at 102o angel which means it can pick up most solutes. 97% of the earth's water is salt water will only less than 3% is drinkable. 70% of the earth's animals live in salt water. All animals need water.
697322
Air is composed of eight or so chemical molecues and combines to create a gas. Water is composed of hyrogen and oxygen molecues and exists as a liquid or solid state (ice).  The difference in density of comparing a gas to a liquid is that the gas is less dense than the liquid, therefore offering less resistance to your hand.
1017764
It is due to the hydrogens bonding to the oxygens. Water always easily breaks up into H+ and OH-, and therefore attracts polar molecules. Also, keep in mind things dissolved into water are either polar or nonpolar, so it based on what is being dissovled into water, it can either become ionized  (break into particles that are charged) or not.
204864
Very samll particles of gold do not have enough mass to break the surface tension of water. Other than the size and weight, one atom of gold has the same properties as one kilo.
663417
ok well think about this: ours is the only planet we know of that has liquid water on the surface. others have no water or the water is frozen. If there were life on every single planet that has liquid water on the surface, we still would not yet have discovered extraterrestial life.
49410
i agree with the second one.  water is clearly defined as having two hydrogen and one oxygen atom.  if it doesn't have oxygen, then it can't be water.\n\nit is possible that the "water" is actually liquid hydrogen, carbon dioxide, etc.  if the "water" is a solid, it can be the frozen of anything above plus lots of other compounds or elements.\n\nif this meteorite was found on earth, then it probably wasn't any of those either since it would have melted.  if it was still a meteor in space, then it could be.  comets are known to have "ice" and dust as their tail.  this isn't really ice as in water turned to ice, but ice is used to refer to other elements or compounds in the solid form (dry ice is CO2).\n\nif you read that in an article in a magazine or newspaper, they were probably try to make it easier to understand what they were trying to say, and decided to use water to describe a liquid or ice to describe the solid that they found.