What is a chemical bond?
a. the attraction of two atoms that holds the atoms together
b. a representation of chemical properties
c. the force that holds together the elements in a compound
d. a substance that's composed of atoms?

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 %

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid

An engineer designing a new type of engine needs a liquid that can be heated and cooled quickly with as little exchange of energy as possible. which property should the engineer primarily look for in the liquid? a. low thermal conductivity b. low specific heat capacity c. high reactivity d. high internal energy e. high density