I'm pretty sure that it is C. :)
Answer:
129,600kg/day
Explanation:
The river is flowing at 30.0
1 = 1000L
Multiply by 1000 to convert to L/s
flowrate of river = 30*1000 =30,000L/s
Convert L/s to litre per day by multiplying by 24*60*60
flowrate of river = 30,000 * 24*60*60 L/day
= 2,592,000,000L/day
if the river contains 50mg of salt in 1L of solution
lets find how many mg of salt (X) is contained in 2,592,000,000L/day
X=
X= 129,600,000,000 mg/day
convert this value to kg/day by multiply by
X= 129,600kg/day
Answer:
1s2 2s2 2p6 3s2 3p6 3d6
Explanation:
We are required to determine the electron configuration of Fe²⁺
We need to know that;
Atomic number of Iron (Fe) is 26
- Therefore, electron configuration of Iron (Fe) atom is [Ar] 3d64s2 or 1s2 2s2 2p6 3s2 3p6 4s2 3d6
- Fe²⁺ is a cation that is formed when a an atom of Fe loses two electrons
- Therefore;
Fe²⁺ will have 24 electrons
- Hence, the atomic configuration of Fe²⁺ is given by 1s2 2s2 2p6 3s2 3p6 3d6 since the two electrons are removed from the 4s2.
Thus, electron configuration of Fe²⁺ is 1s2 2s2 2p6 3s2 3p6 3d6