Compared to a calcium atom, the calcium ion ca2+ has
(1) more protons (3) more electrons
(2) fewer protons (4) fewer electrons

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 %

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Classify this reaction: 2al+n2-> aln.