Which requires more energy to dissolve, ionic or covalent compounds? covalent

ionic

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

How do dying stars contribute to the formation of planets

Areader can tell that the meaning of “obnoxious” will include “having the quality of something” because of the .a) prefix b)pronunciation c)suffix d) word root