What is the simplest whole number ratio of atoms in a molecule or formula unit called? the molecular formula the molar mass the percent composition the empirical formula

Answer : The correct option is, empirical formula.

Explanation:

Empirical formula : It is the simplest form of the chemical formula which depicts the whole number of atoms of each element present in the compound.  

Molecular formula : it is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

The equation used to calculate the valency is :

Hence, the correct option is, empirical formula.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.