Answer:
Antibacterial specifically refers to an inhibition of growth of bacteria, whereas antibiotics refer to a general inhibition of growth of microorganisms, which could include bacteria and viruses.
The pH of a solution is determined by the relative activities of the hydronium (H3O+) ions and the hydroxide (OH–) ions in the solution.
<span>because the 4s orbitals have a lower energy than the 3d, and so the 4s orbitals are filled first.</span>