The smell is from hydrogen sulfide - H2S.
You are smelling methane.
To suppurate or become an increasing source of irritation or decay.
It is prepared from a chemical compound named poly vinyl chloride
Decomposing animal manure
Decomposing plant material.
If a material contains three elements joined in a fixed proportion, then it is a compound. It can only be separated by a chemical reaction.
A chemical compound always contains exactly the same proportion of elements by mass. ---------------------------------------------------------------------------------------------------- A law that states that a compound always contains the same elements in the same proportions. Source: e2020
Silver oxide is a chemical compound. It is used to prepare other silver compounds. Source: Wikipedia. The link below has more information on Silver Oxide.
Acetaldehyde (systematically: ethanal) is an organic chemical compound with the formula CH3CHO or MeCHO. It is a flammable liquid. Source: http://en.wikipedia.org/wiki/Acetaldehyde
If you mean to ask if baking soda comes from animals, no it does not. Baking soda is a chemical compound consisting of sodium, hydrogen, carbon and oxygen.
The chemical formula of a compound is a list of the chemical symbols of each element in a molecule of the compound, denoted with numbers representing how many atoms of each element are in one molecule of the compound. Example is H2O is a water molecule with 2 Hydrogen atoms, and 1 Oxygen atom.
all organic materiels can be composted and used as fertilizer
Carbide is a chemical compound wherein carbon is combined with a metallic or semi-metallic element. It is used as a constituent in steel and cast iron production, as well as a source of acetylene.