Question

what are the properties of water

Answer 1

. Freezing Point.
. Surface Tension
. Heat of Vaporization
. Vapor Pressure.
. Viscosity and Cohesion.
. Solid State.
. Liquid State.
. Gas State.

Answer 2

properties of water(H2O):

Water (H2O, HOH) is the most abundant molecule on Earth's surface, composing 70-75% of the Earth's surface as liquid and solid state in addition to being found in the atmosphere as a vapor. It is in dynamic equilibrium between the liquid and vapor states atstandard temperature and pressure. At room temperature, it is a nearly colorless, tasteless, and anodorless liquid. Many substances dissolve in water and it is commonly referred to as the universal solvent; because of this, water in nature and in use is rarely clean, and may have some properties different than those in the laboratory. However, there are many compounds that are essentially, if not completely, insoluble in water. Water is the only common, pure substance found naturally in all three states of matter—for other substances. the five main properties of water:
1. Its attraction to polar molecules
2. High-specific heat
3. High heat of vaporization
4. The lower density of ice
5. High polarity

Cohesion:
Cohesion, otherwise known as water's attraction to other
water molecules, is one of the major properties of water.
Water's polarity lends it to be attracted to other water
molecules. The hydrogen bonds in water hold other water
molecules together. Due to water's cohesiveness:
Liquid water has surface tension. This allows for
insects, such as Water Striders, to walk on water.
Water is a liquid at moderate temperatures, and not a
gas.
Adhesion:
Water's attraction between molecules of a different
substance is called adhesion. Water is adhesive to any
molecule it can form hydrogen bonds with. Due to water's
adhesiveness:
Capillary action occurs. For example, when you have a
narrow tube in water, the water will rise up the tube
because of water's adhesiveness to the glass
"climbing" up the tube.
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2. Water's High-Specific Heat
Water can moderate temperature because of the two
properties: high-specific heat and the high heat of
vaporization.
High-specific heat is the amount of energy that is absorbed
or lost by one gram of a substance to change the
temperature by 1 degree celsius. Water molecules form a lot
of hydrogen bonds between one another. In turn, a lot of
energy is needed to break down those bonds. Breaking the
bonds allows individual water molecules to move freely about
and have a higher temperature. In other words: if there are a
lot of individual water molecules moving about, they’ll create
more friction and more heat, which means a higher
temperature.
The hydrogen bonds between water molecules absorb the
heat when they break and release heat when they form,
which minimizes temperature changes. Water helps maintain
a moderate temperature of organisms and environments.
Water takes a long time to heat up, and holds its temperature
longer when heat is not applied. 3. Water's High Heat of Evaporation
Water's high heat of vaporization is the other property
responsible for its ability to moderate temperature.
Water's high heat of evaporation is basically the amount of
heat energy needed to change a gram of liquid into gas.
Water also needs a lot of energy in order to break down the
hydrogen bonds. The evaporation of water off a surface
causes a cooling effect. Much like among humans—when we
get hot, or energy inside our body is breaking chemical
bonds, we sweat as a cooling effect. In this case, the same
process occurs: as the water evaporates off the the surface
of the skin, it cools down the surface.
4. The Lower Density of Ice
At cooler temperatures, the hydrogen bonds of water
molecules form ice crystals. The hydrogen bonds are more
stable and will maintain its crystal-like shape. Ice—the solid
form of water—is less dense than water because of the
hydrogen bonds being spaced out and being relatively apart.
The low density is what allows icebergs to float and are the
reason that only the top part of lakes are frozen.
5. Water's High Polarity
Water is a polar molecule that has a high level of polarity
and attraction to ions and other polar molecules.
Water can form hydrogen bonds, which make it a powerful
solvent. Water molecules are attracted to other molecules
that contain a full charge, like an ion, a partial charge, or
polar. Salt (NA+ CL-) dissolves in water. Water molecules
surround the salt molecules and separate the NA+ from the
CL- by forming hydration shells around those two individual
ions.