Answer:
If a fossil bone is found to contain 1/8th as much Carbon-14 as the bone of a living animal, what is the approximate age of the fossil?(half-life of C-14 = 5800 years)
Explanation:
150 years i guess so? im nkt sure
third one
h\ /h
c=c
h/ \h
hi
Na2SO4 is equal to 0.0070401642780093 mole.
Roman numbers are oxidation state of the metals
Because some elements of metals show more than one oxidation state like iron Fe2+ in ferrous and Fe3+ in ferric.
