What are the properties of water that are important for life to be able to exist?

Answer 1

water is essential for all life on earth. without it plants could not grow and they would not produce oxygen. most of the worlds surface is covered in water and it contains algae which produces most of the oxygen in this world.

Answer 2

First, its polarity, which arises from the fact that water is a bent molecule and not a linear molecule. This polarity gives water the capacity to make hydrogen bonds with other water molecules, causing water to be a liquid at room temperature, despite its low molecular weight, (18 g/mol). Natural gas (CH4) has a molar mass of 16 g/mol and is a gas at room temperature, why? Lack of hydrogen bonding capability in the methane molecule. If water had happened to be linear, the dipoles on the O-H bonds will cancel perfectly, so it could not be a liquid. Each water molecule is surrounded by four other water molecules, so to vaporize water, those hydrogen bonds have to be broken, as you know, a temperature of 100 ˚C is required. Also, water has a wide range of temperatures in which is a liquid, 0˚C to 100 ˚C, perfect for our planet, in which those extremes are not easily reached (at least the 100 ˚C required to make all the water vapor is not reached, that is 212 ˚F and the highest temperature registered on Earth is around 140 ˚F, hot, but not sufficient to evaporate all the water in the planet). As a consequence of this polarity, water has a high dielectric constant, which means, it is capable of dissolving ions. Important in Biology, since blood is made up of water and many things dissolved in it, ions like Na+, K+, Ca2+, etc, must dissolve to regulate biological systems. All brings it back to the polarity of water, due to its molecular structure.

Answer 3

• When water freezes, it floats.
• Water's one oxygen atom pulls the hydrogen atoms closer to itself making the molecule polar. This property allows water to break down solutes easily.
• It takes a lot of energy to disrupt water molecules enough to generate heat.
• Water has a pH of 7 which is exactly neutral.
• Adhesion and cohesion.

Answer 4

-solvency -cohesion of molecules -high specific heat -evaporative cooling -less dense as a solid than a liquid

Answer 5

We drink it because it has a liquid property. we die without liquids to drink. and we are 70% water.