The chemical formula depends on the type of acids it is. Acidic rain is a complex mixture of nitrous, nitric, sulfurous and sulfuric acids which all combine to lower the pH.
Answer
Q=4479.8 cal
Procedure
To solve the problem you will need to use the specific heat formula
Where;
Q=heat energy
m=mass
c=specific heat capacity
ΔT=change in temperature
Assuming that the heat released from the cracker of unknown material is equal to the heat absorbed by the water, then we can use the c and m for water in our calculations.
Substituting the values in our equation we have
Finally, transform the J to cal
(2) C4H8 because it contains a carbon
Eu2+ is stable because of the two electrons in its outermost orbit and after losing 4 electrons. Ce +4 is stable
What are lanthanide ions?
All lanthanide elements form trivalent cations, Ln3+, whose chemistry is largely determined by the ionic radius, which decreases steadily from lanthanum to lutetium. These elements are called lanthanides because the elements in the series are chemically similar to lanthanum.
The Ce metal has the following electronic configuration: [Xe] 4f¹5d¹6s²
It obtains noble gas configuration after losing 4 electrons. Ce +4 is stable, so.
Eu's electronic setup is as follows.
[Xe] 4 f ⁷6s²
[Xe] 4 f ⁷
Eu2+ is stable because of the two electrons in its outermost orbit. Additionally stable is its +3 oxidation state. Ce⁺²
To learn more about lanthanides click on the link below:
brainly.com/question/12756990
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