What does the coefficient mean in front of a element?

How old is Mt Augustine? Is visible light a type of radiation? What is a breeding experiment where a single trait controlled by two alleles is examined called? What is the difference between autonomy and freedom? If scientists find an ice core from 30000 years ago that contains chemicals radically different than the chemicals that are around today they would likely conclude that? How do you remove rust from an iron skillit? How are igneous and sedimentary rocks similar? How do gum tree reproduce? What process is causing the carbon cycle to get out of balance? What are the three types of skin cells? There are 150 Saguaro cacti plants per square kilometer in a certain area of a Arizona desert to which population characteristic does the information refer? Kindly infomed list of oc cast in andrapradesh? What are common figure faults? What will nicolaus Copernicus will be remembered for? A year of snow a year of plenty how true is it? Is it generally true that igneous rocks are formed by the crystallization of molten magma? What structure do land animals have to have because their cells do not have a cell wall? Why is it important to know how metals react? What will happen if you give a cat soda pop? When the temperature falls wator vapor can change into?