If the atom is neutral then, the total number of electrons is the same as the number of protons. We calculate for the total number of electrons given the compressed electron configuration,
number of electrons of Xenon (Xe) = 54
The total number of electrons after Xenon,
= 2 + 14 + 7 = 23
Adding up all the number of electrons, we have,
total number of electrons = 54 + 23 = 77
The identity of this element is Iridium (Ir). This element belongs to the class of Group 9. This is the transition metal.
The concentration of the diluted solution is 0.0625 M.
<h3>What is concentration?</h3>
The term concentration refers to the amount of substance present in solution.
1) To find the mass of the compound;
mass/134 g/mol = 1.40x10-2M × 100/1000
mass = 1.40x10-2M × 100/1000 × 134 g/mol
mass = 0.19 g
2) To find the molarity of the solution;
2.50 g/40 = 100/1000 × M
M = 2.50 g/40 × 1000/100
M = 0.625 M
3) Using;
C1V1 = C2V2
0.625 M × 10.00mL = C2 × 100.00 mL
C2 = 0.625 M × 10.00mL/ 100.00 mL
C2 = 0.0625 M
Learn more about concentration: brainly.com/question/3045247
V = 38.55 mL - 15.75 mL = 22.80 mL = 22.80 cm³
D =
=
= 1.392 g/cm³
Answer:
There are three possible chemical equations for the combustion of sulfur:
- 2S (s) + O₂ (g) → 2SO (g)
- 2S (s) + 3O₂ (g) → 2SO₃ (g)
Explanation:
<em>Combustion</em> is a reaction with oxygen. The products of the reaction are oxides, and energy is released in the form of heat and light.
<em>Sulfur</em> iis a nonmetal, so the oxide formed is a nonmetal oxide.
The most common oxidation numbers of sulfur are -2, + 2, + 4, and + 6.
The combination of sulfur with oxygen may be only with the positive oxidation numbers (+2, + 4, and +6).
Then you have three different equations for sulfur combustion:
<u>1) Oxidation number +2:</u>
Which when balanced is: 2S(g) + O₂(g) → 2SO(g)
<u>2) Oxitation number +4:</u>
That equation is already balanced.
<u>3) Oxidation number +6:</u>
Which when balanced is: 2S(s) + 3O₂(g) → 2SO₃(g)
The statement “Only the “Conclusion” section discusses whether the original hypothesis was supported, and both sections suggest further research”, best describes the difference between analysis and conclusion.
Answer: Option 4
<u>Explanation:
</u>
In research, we do experiments and derive the results. Then, those results were analyzed by us. In this analysis part, we compare our results with the related results published elsewhere. Also, we correlate the similarities and point out the differences between our analysis and other reported results.
In conclusion part, we have to check hypothesis or it supported. And, we summarise our analysis and figure out the further research need to be done on that to improvise our research. So, the final statement is the correct option which best describes the difference between analysis and conclusion.