In the decomposition of lead (II) nitrate to give lead (II) oxide, nitrogen dioxide and oxygen gas, the coefficient of nitrogen dioxide (in the balanced equation) is (a) 1 (b) 2 (c) 3 (d) 4
The correct option is D 4 The explanation for the correct answer Option (D) 4 Steps in balancing a chemical equation: First, count each type of atom in reactants and products present in the reaction, if the same number of each atom appears on both sides of the arrow then the reaction is balanced. If not, then place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances. (try to use the smallest coefficients possible). Change only the coefficients, never change the subscripts in chemical formulas changing subscripts changes the substances involved in the reaction. Repeat this until the equation is balanced.
