Water is polar because its oxygen atom is strongly electronegative. Oxygen pulls away an electron pair from the hydrogen atom, gaining a slightly negative charge. Polarity is dependent on the atoms’ electronegativity and the arrangement of their bonds. Here are some examples. Molecular polarity is an important property in water. Hydrogen is slightly more polar than oxygen. That is a good thing for us, because water has a high concentration of oxygen in it.
The polarity of water allows it to dissolve polar substances. The dissolving power of water is crucial to life on Earth, because liquid water provides a smooth, efficient means of transporting substances. Water is polar because it has a pH balance of seven, indicating that it contains a balanced mixture of hydrogen and hydroxyl ions. This makes it easier for water to mix with other substances. It is also more chemically stable than other liquids and solids, making it a good choice for cleaning.
A molecule can be polar or non-polar by having an uneven distribution of electrons. This is a key difference between a linear molecule and a polar molecule. The polarity of water is caused by the bent molecular shape of water molecules. When the hydrogen atoms are in the bent position, they have a net dipole moment. Because of this, water molecules are non-linear.