How many atoms can hydrogen bond with carbon? How does hydrogen bonding affect vapor pressure? How does hydrogen bonding affect the boiling point of water? How does hydrogen bonding affect the melting point? How do hydrogen bonds affect solubility? How are hydrogen bonds related to the properties of water? See all questions in Hydrogen Bonds. Impact of this question views around the world. Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry.
It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. While revisiting some of my old notes about the Miller-Urey experiment, I stumbled across the "equation" Is there a particular reason, or did it just happen to be? It's just that these are rarely used in literature. The choice of whether to write binary hydrides with the hydrogen first or second depends on whether that hydrogen is considered acidic, with water marking the delineation point.
It so happens that this changeover neatly divides the periodic table. This notation is in keeping with that for more complex compounds. If the compound is an acid, the acidic hydrogen atoms are put at the from of the formula, while nonacidic hydrogen atoms are placed in the main part of the formula. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Rule 1. The element with the lower group number is written first in the name; the element with the higher group number is written second in the name.
Exception: when the compound contains oxygen and a halogen, the name of the halogen is the first word in the name. Chemical bonds link elements together to form more complex molecules called compounds.
A compound consists of two or more types of elements held together by covalent or ionic bonds. Elements cannot be divided into smaller units without large amounts of energy.
A compound is a pure substance composed of two or more different atoms chemically bonded to one another.
That means that it can not be separated into its constituents by mechanical or physical means and only can be destroyed by chemical means. Compound:a substance that is made up of more than one type of atom bonded together. Mixture: a combination of two or more elements or compounds which have not reacted to bond together; each part in the mixture retains its own properties.
The answer is that compounds are formed when elements are joined and held together by strong forces called chemical bonds. Covalent bonds share electrons between atoms in order to fill their electron shells. In the compound, molecules are held together by the attraction between the nucleus and the shared electrons. Molecules have molecular bonds. Whether something is a compound or not depends on how many different kinds of elements make it up.
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