This element reacts with hydrogen to produce a gas with the formula HX. When dissolved in water, HX forms an acidic solution X is
A. Carbon
B. Sulfur
C. Barium
D. Nitrogen
E. Fluorine

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules