Which of the following describes the reactants of a chemical reaction? A. The substances that dissolve
B. The resulting substances
C. The atoms that are rearranged
D. The original substances

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.