Answer:
Explanation:
an acid base tritation is the determination of the corncerntration of an acid or base by exactly neutralizing the acid or base with an acid or base of known concentration. This is always for quantitative analysis of the corncerntration of an unknown acid or base solution.It makes use of the neutralization reaction that occura between acids and base.
Wow, now this one is a hard one, took me quite a while to figure it out but here it is:

The abundances of the two isotopes is:
Antimony-121 = 57.2%
Antimony-123 = 42.8%
Option c. dendrochronology
tree rings or dendrochronology they allow to use it in calibration for carbon-14 on temporal placements of fragments of wood (from long dead trees).
Example Bristle cone pines (1957) 4723 years old
Answer: D
Explanation: Bacteria thrives in warm and moist environments.
Answer:
4. mutualism
5. commensalism
Explanation:
4. mutualism (they benefit off each other)
5. commensalism (the whale is unaffected)