Question

whats the easiest way to balance a chemical equation? trial and error using the periodic table complex algebra calculus multiple choice 1 point which reactant is missing from the equation shown? ?+po₄ - h₃po₄ one hydrogen atom one phosphorus atom three hydrogen atoms one oxygen atom

Explanation:

For the first question, trial and error is a common and relatively easy - to - use method for balancing simple chemical equations. For the second question, in the equation to form $H_3PO_4$ from $PO_4$, three hydrogen atoms are needed to balance the formula as $H_3PO_4$ has three hydrogen atoms.

Answer:

1. A. Trial and error
2. C. Three hydrogen atoms