A sample of CH4 is burned in an excess of O2 to give 3.0 moles of H2O. How many moles of Ch4 were in the original sample

The total number of electrons is 14

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The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

Answerwhenever an organism dies, decomposers break down the corpse into nitrogen in the form of ammonia. this nitrogen can then be used again by nutrifying bacteria to fix nitrogen for the plants i believe this answer to be correct, plz check good luck