The following image shows the reaction of a propane molecule and oxygen producing water molecules and carbon dioxide. How many Oxygen atoms are on the reactants side and how many are on the products side? Remember the rules with coefficients and subscripts. You are only counting the number of Oxygen atoms. Then tell me is the equation balanced? Either yes or no. *
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1 2 3 4 5 8 10 Yes No
Reactants
Products
Balanced? Yes or no?
Reactants
Products
Balanced? Yes or no?

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

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