What element is represented by the electron configuration [ar]4s23d8?

A__ is two or more substances that are together in the same place but are not chemically combined

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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 %