How can an isotope like carbon 14 be used to date dead organisms?

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

How many atoms are there in 5.70 mol of mg

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?