Answer:
Hence the concentration of a MnO41- solution that has absorbance of 0.490 in the same cell at that wavelength is 0.3266.
Explanation:
Now A = el, el=const
Then,

Answer:
D
Explanation:
D is the answer because 2 is needed to know
Answer:
Pelting point.
Explanation:
Freezing point is the same is the melting point.
C. a change of state. It can be a physical or a chemical state of change.
<span>Water molecules form a complex with metal ions (usually a 6-coordinate complex). And the high charge density on a metal ion draws electrons away from the water molecules, making the O-H bonds more polar than normal. This allows the dissociation of the protons, making solutions of most metal ions acidic</span>