Propane is used as a fuel, commonly in portable grills. If 15.0 grams of propane are burned in the presence of 15.0 grams oxygen, what mass of carbon dioxide should be expected? Show work please.

C3H8 + 5O2 → 4H2O+ 3CO2

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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