In a(n) reaction, the reactants contain more energy than the products; energy is released in this type of reaction.

Can someone me with questions 12 and 13 plz.

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 %

Which statement best explains the relationship between an area is geography and the temperature of its surface water