Answer: Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. ...
Use coefficients of products and reactants to balance the number of atoms of an element on both sides of a chemical equation.
Because of pollution from factories and other activities that release harmful gases into the air
Because water vapor, uncontained, will diffuse out into the atmosphere and is not close enough to condense back into the liquid water, so no equilib. can be established.
