The melting of ice is a physical change. A physical change involves states of matter and energy. The melting of ice is a phase change, which is a type of physical change.Know More
Other examples of physical change include sublimating dry ice, boiling water, crushing an aluminum can or breaking a glass bottle. While matter takes a different form during a physical change, no new substance is created.
On the other hand, in a chemical change, a new product is created following a chemical reaction. Examples of chemical changes include cooking an egg, using a chemical battery or burning a candle.Learn More
Tungsten, element 74, has the highest melting point of all of the elements on the periodic table. Its melting point is approximately 3,695 Kelvin, or 3,422 degrees Celsius.Full Answer >
Solids that are held together by covalent bonds have the highest melting points because the molecules are firmly held together in a crystal lattice. This property makes such solids poor electrical conductors since the molecules cannot move. The metallic solid tungsten has the highest melting point among the elements.Full Answer >
The melting point of Teflon is 326.8 degrees Celsius or 620.24 degree Fahrenheit. Teflon is a polymer made up of a large chain of molecules with fluorine. The scientific name of Teflon is tetrafluoroethylene.Full Answer >
Sodium chloride has a high melting point because of the strong electrostatic attraction between its positive and negative ions; this requires more heat energy to overcome. All ionic compounds have high melting points for this reason.Full Answer >