What is a limitation of using a chemical formula, such as C&H 208, to represent a compound?
O The chemical formula does not show the types of elements that make up the compound.
O The chemical formula does not show how the atoms are connected to one another.
O The chemical formula does not show the number of atoms of each element in a molecule.
O The chemical formula does not show the chemical symbols of the elements in the compound.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

What can be done to make a solid solute dissolve faster in a liquid solvent?