1) the term which indicates that the element occurs in pairs is select the letter of the correct answer. a.) coefficient b.) diatomic c.) subscript d.) product e) reactant 2) elements and compounds to the right of the arrow are called select the letter of the correct answer. a.) coefficients b.) diatomics c.) subscripts d.) products e.) reactants 3) elements and compounds to the left of the arrow are called select the letter of the correct answer. a.) coefficients b.) diatomics c.) subscripts d.) product e.) reactants 4) the number used to balance an equation is known as a select the letter of the correct answer. a.) coefficient b.) diatomics c.) subscript d.) product e.) reactant 5) the number used to write a correct compound formula is called a select the letter of the correct answer. a.) coefficient b.) diatomic c.) subscript d.) product e.) reactant 6) the number of atoms of each element on each side of an equation must match. true false 7) a chemical equation uses formulas and symbols to show what happens during a chemical reaction. true false 8) explain the procedure for balancing an equation