Molecules are held together by one of two types of bonds – covalent bonds or ionic bonds. A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. And the bond they form, which is the result of a stable balance of attractive and repulsive forces betwee...
Homonuclear diatomic molecules include: hydrogen (H2), oxygen (O2), nitrogen (N 2) and all of the halogens. Heteronuclear Molecules: Hetero-nuclear molecules are formed from more than one element. The motion of a single electron in the molecular orbitals is described in a molecule cont...
The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative,
Because H2 molecules are so light, uncontained hydrogen gas can easily float to the top of the Earth's atmosphere and can actually escape into space. Most of the hydrogen at ground level is bound up in molecular form with other elements -- in water, for instance, where hydrogen is ...
amphipathic molecules, but many biochemical molecules are also amphipaths. Examples include phospholipids, which form the basis of cell membranes. Cholesterol, glycolipids, and fatty acids are amphipaths which also incorporate into cell membranes. Bile acids are steroid amphipaths used to digest dietary...
What is the nucleotide base found in RNA but not in DNA? What are the constituents of DNA and RNA? Which one is genetic material, DNA or RNA? What is the monomer or base unit for nucleic acids? What are the components of DNA and RNA molecules?
A solution is made by mixing 308g of sucrose (a sugar) in 500mL of water. What is the concentration of the solution in mol/L? How many molecules of sucrose are in solution? The molecular mass of sucrose is 342.3 grams per mole. What mass of sucrose, C_12H_22O_11 is present in ...
Here on earth, vast numbers of hydrogen atoms are contained in water, plants, animals and, of course, humans. But while it’s present in nearly all molecules in living things, it’s very scarce as a gas – less than one part per million by volume. ...
bonds or strong interactions and deformations induced by the interactions of atoms in molecules have a quite marginal role, virtually null, in shaping the general traits of the topology of molecular electron densities of the studied hydrocarbons, whereas the key factor is the underlying atomic ...
What are the parts of an atom? What is the Periodic Table? How do atoms make molecules and compounds? What are isotopes? How do atoms make ions? How many atoms are there in something? How do we know atoms exist? A brief history of atoms Find out moreWhat is an atom?Take...