Equal masses of the metals Na, Mg, Ca and Ag are added to separate samples of excess HCl(aq).
Which metal produces the greatest total volume of H2(g)?

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 %

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?