A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.
It indicates what elements is composed by and how many atoms of one element are linked to the other.
For example, this is the formula for table salt is:
NaCl
The formula indicates that table salt (sodium chloride) is composed by sodium (Na) and chlorine (Cl) on a 1:1 ratio.
Hope it helped,
BioTeacher101
An orderly sequence of reactions with specific enzymes acting at each step is the definition of<span>
metabolic pathway.</span>
In order to answer you would need to post an options list
Answer:
D
It helps the reader to understand which layers of the atmosphere are most important. Don't cheat