I already answered this question in Spanish language. Now I answer in English.
Answer: the chemical changes.
Explanation:
We understand by composition of a substance to the proportion (ratio or percentage) of each element (type of atoms) that makes up the same, as well as the way in which these elements are linked (chemical bonds).
A chemical change is a process, also called a chemical reaction, in which one or more substances are converted into different substances.
The resulting substances are different because their composition is different, since some chemical bonds have been broken and others have been formed, giving rise to a new structure. The chemical formula of each compound product of the chemical change will present a different combination of atoms, in ratio or structure.
Answer:
Ba has the largest atom size
5.88 moles x 6.02x10^23<span> f.u./mole = </span><span>3.54x1024 formula units</span>
I believe that the answer to the question provided above is that molecules in solid are compact and are connected. It requires huge energy to move it, thus requires high temperature.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
