Ok so because the half life is 25 years, the mass will "decrease" by half every 25 years.
So after 25 years it becomes 2 grams,
At 50 yrs it becomes one gram
At 75 years it will be half a gram
At 100 years it will be a quarter of a gram or 0.25 grams.
I.e. the final mass is 0.25 grams
Answer:
NiBr₃ + Al₂S₃ ⇒ NiS₃ + Al₂Br₃
Explanation:
A double replacement reaction is a reaction in which the cations switch anions.
In the reaction, the two cations are Al and Ni. The cations are Br and S.
Put each cation with the opposite anion: Ni with S and Al with Br.
The products would be NiS₃ and Al₂Br₃.
The full reaction is NiBr₃ + Al₂S₃ ⇒ NiS₃ + Al₂Br₃.
Hope that helps.
Answer:
The balanced single displacement reaction between aluminum and copper sulphate is as follows.
Explanation:
The given ions are as follows.
- Aluminium ion and copper sulfate ion.
Single displacement reaction occurs one element replaces another element.
Hence, the balanced chemical reaction is as follows.
<u>Oxidation half reaction:</u>
Aluminium loses three electrons.
<u>Reduction half reaction:</u>
<u>
</u>
Copper gain three electrons.
The answer to this question is letter "D" or the last item in the choices which is the nuclear fusion "It occurs with very small atoms with low mass".
The first statement, the second, as well as the third statement, is not true because these three statements are referring to nuclear fission.
Answer:
is this like a abcd question cause if it is than is C
