Which mixture can be classified as a homogeneous mixture a, soil b, sand c, salad dressing d, tap water (single choice)

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

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.

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a