Ice is the solid form of water that is created when water freezes at a temperature of zero degrees Celsius, so it has the same chemical formula of water, which is H2O. Water consists of two atoms of hydrogen and one atom of oxygen.
The three atoms that make up water are covalently bonded, which means that their nuclei are linked by attraction to shared electrons. They form a specific structure with the oxygen atom located between the two hydrogen atoms. The two atoms of hydrogen and one atom of oxygen do not lie in a straight line. The hydrogen atom is bent towards each other, which approximately forms a 105 degree angle.