Answer:
Aluminum; [Ne]3s²3p¹
Arsenic; [Ar]3d¹⁰4s²4p³
Explanation:
<em>Aluminum</em>
From the periodic table, we have that aluminum, Al, is located in period 3, and group 3A of the periodic table
Therefore, the noble gas that comes before aluminum in the periodic table is neon Ne
The electronic configuration of aluminum is 1s²2s²2p⁶3s²3p¹
The electronic configuration of neon is 1s²2s²2p⁶
Therefore, the electronic configuration of aluminum in noble gas notation (Ne) is therefore;
[Ne]3s²3p¹
<em>Arsenic</em>
Arsenic is located after argon, Ar on the periodic table
The electronic configuration of arsenic is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³
The electronic configuration of argon is 1s²2s²2p⁶3s²3p⁶
The electronic configuration of arsenic in noble gas notation (Ar) is given as follows;
[Ar]3d¹⁰4s²4p³
Well an absorbtion line is a dark line in an absorption spectrum
thats all i can give you right now i didnt quite understand the question but hope it helps
Answer:
1.25 standard atmosphere = 950 Torr
Explanation:
Formula
multiply the pressure value by 760!!
Answer: option D) energy was absorbed and entropy increased.
Explanation:
1) Given balanced equation:
2H₂O (l) + 571.6 kJ → 2 H₂ (g) + O₂(g).
2) Being the energy placed on the side of the reactants means that the energy is used (consumed or absorbed). This is an endothermic reaction.
So, the first part is that energy was absorbed.
3) As for the entropy, it is a measure of the disorder or radomness of the system.
Since, two molecules of liquid water were transformed into three molecules of gas, i.e. more molecules and more kinetic energy, therefore the new state has a greater degree of radomness, is more disordered, and you conclude that the entropy increased.
With that, you have shown that the right option is D) energy was absorbed and increased.
Well a mixture is less permanent and also it can be easily taken aprt where a compound does the opposite of those things.
Hope I helped :)
