2Al + 3Fe0- 3Fe + Al2O3 How many moles of aluminum are needed to react completely with 2.2 moles of iron (II)oxide in the following reaction?

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 %

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.