The answer is B, Let me know if you get it right!
Answer:
6.2 g
Explanation:
In a first-order decay, the formula for the amount remaining after <em>n</em> half-lives is
where
<em>N</em>₀ and <em>N</em> are the initial and final amounts of the substance
1. Calculate the <em>number of half-lives</em>.
If
2. Calculate the <em>final mass</em> of the substance.
Answer: the correct option is A (C.N. = 6; O.N. = +4.)
Explanation:In the coordination
compound[Cr(NH3)(en)2Cl]Br2,
the coordination number (C.N.) and oxidation number (O.N.) of the
metal atom are 6 and +4 respectively.
1st part.)). The rest of the water goes into oceans and underground.