Hydrogen, carbon and oxygen commonly form covalent bonds. There are two forms of covalent bonds, polar and nonpolar, depending upon whether atoms share electrons equally.Know More
Atoms are stable when their outer shell of electrons is full. If the shell is not full, atoms react with other atoms to gain, donate or share electrons. Covalent bonds are a sharing of electrons; an even sharing of electrons results in a nonpolar covalent bond. Nonpolar bonds mostly exist between atoms of the same element. For example, oxygen contains six electrons in its outer shell. To gain a full outer shell of eight electrons, oxygen atoms form double bonds with other oxygen atoms. Because they are identical atoms, they share the four electrons equally.
When atoms of two different elements share electrons, they form polar covalent bonds. In polar covalent bonds, the shared electrons spend more of their time near one atom than the other, resulting in an uneven sharing and a partial charge on both atoms in the bond. Water is an example of a polar covalent bond. In water, oxygen shares electrons with two hydrogen atoms. However, the oxygen has more pull on the shared electrons, giving it a partial negative charge and leaving each hydrogen with a partial positive charge.Learn more about Chemistry
Glycerol contains the elements carbon, hydrogen and oxygen. Glycerol is also known as glycerin, glycerine, 1,2,3-propanetriol, glyceritol, glycyl alcohol and trihydroxypropane. As the last name suggests, glycerol contains a hydrocarbon chain with three hydroxyl groups connected to it.Full Answer >
Most inorganic compounds do not contain carbon; however, in those inorganic substances that do contain carbon, carbon-hydrogen bonds are absent. Organic compounds always contain carbon and almost all have carbon-hydrogen bonds, according to About.comFull Answer >
Mentos makes soda fizz due to the Mentos breaking the bonds in water molecules and encouraging the growth of more carbon dioxide gas, which is used to carbonate sodas. This is due to a combination of a rough surface area, the density of Mentos candies and their coating.Full Answer >
Steels are alloys that have iron content ranging from more than 99 percent to less than 60 percent, with carbon and other metallic elements to harden the alloys or give them other properties. Iron by itself is relatively soft and prone to rusting. Steel is hard and corrosion-resistant.Full Answer >