In the presence of sulfuric acid, one molecule of ethanol (C2H60) can react to form one molecule each of water and another product:
C2H5O-H20 + ?
Using the law of conservation of mass, describe a technique a chemist could use to
predict the formula of the unknown product; then use the technique you described
to predict the formula of the unknown product.

um i think it might be a car?

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.