What is the importance of the coefficients in a balanced chemical reaction?

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.

The most common form of matter in the universe

What two categories of toxins were present in the air at dish,texas as a result of the gas pipelines that pass through the area