To estimate the Milky Way’s age, astronomers measure the elements found in the oldest stars in the Milky Way’s dense groupings of stars that make the halo shape, which are referred to as what?

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What overall charge must all compounds have

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 %