Which of the following could be considered a scientific statement? a. "i think that cookies taste much better than cake." b. "i observed that butterflies prefer the yellow flowers." c. "yellow is a cheerful color." d. "i believe there is life on other planets."

Can someone me with questions 15 to 17 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 %

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?