1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bad White [126]
3 years ago
11

The ion that has the same e- arrangement as Ar:

Chemistry
2 answers:
alina1380 [7]3 years ago
7 0
Well, I recommend reading the text :P
Alisiya [41]3 years ago
5 0
the answer is E- all of these

to check if these ions have the same e- configuration, check them in the periodic table and see where they land when you take or add electrons. 

for example, K is one space away to be like Ar, which is just one space behind. having a positive charge +1, means that it has one less electron. if you remove this electron, it is like Ar because is one space.

another example-> S-2  means you have add two electrons because charge is negative, so you add. two spaces after S land in Ar. so it is same e- configuration as Ar.
You might be interested in
A compound is 70.0% iron and 30.0% oxygen. Its molecular mass is 479.1 g/mol. Determine the
Strike441 [17]

Answer:

Fe_6O_9

Explanation:

Hello there!

In this case, since these problems about formulas, firstly require the determination of the empirical formula, assuming that the given percentages are masses, we can calculate the moles and mole ratio of oxygen to iron as shown below:

n_{Fe}=70/55.85=1.25\\\\n_O=30/16=1.875

In such a way, by rounding to the first whole number we multiply by 8 and divide by 5 to obtain:

Fe_{2}O_{3}

Whose molar mass is 159.69 g/mol and the mole ratio of the molecular to the empirical formula is:

479.1/159.69=3

Therefore, the molecular formulais:

Fe_6O_9

Regards!

4 0
2 years ago
The volume of a gas is 36.0 ml at 10.0°c and 4.50 atm. at what temperature (°c) will the gas have a pressure of 3.50 atm and a v
galben [10]
Using the combined gas law, where PV/T = constant, we first solve for PV/T for the initial conditions: (4.50 atm)(36.0 mL)/(10.0 + 273.15 K) = 0.57213.
Remember to use absolute temperature.
For the final conditions: (3.50 atm)(85.0 mL)/T = 297.5/T
Since these must equal, 0.57213 = 297.5/T
T = 519.98 K
Subtracting 273.15 gives 246.83 degC.
5 0
3 years ago
What is ionic bonding? give examples
TiliK225 [7]
Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds.
5 0
3 years ago
Read 2 more answers
5 physical properties of osmium
lisabon 2012 [21]
In 1803AD, Osmium was discovered by Smithson Tennant when dissolving an impure sample of platinum in aqua regia, a mixture of hydrochloric and nitric acids. He was able to determine that the black powder left behind after dissolving the platinum was actually a mixture of two new elements, indium and osmium.

•Osmium is a bluish-white and shiny metal.

•Osmium is very hard and is brittle even at very high temperatures.

•Osmium has the lowast vapor pressure and the highest melting point among the platinum group of metals.

•Osmium's density is slightly more than iridium hence is credited as the heaviest element.
6 0
2 years ago
How do multiple forces interact
mars1129 [50]
<span>So what happens when there is more than one force? I like to think of net force as if two people were pulling on ropes attached to a big crate. If they pull the crate in the same direction, the crate will accelerate twice as quickly. If they pull in opposite directions with equal forces, the crate won’t move at all — these two forces cancel each other out. If one person pulls northwards and the other pulls eastwards, the crate will move to the north-east.




</span>
4 0
3 years ago
Other questions:
  • Is this the right answer? Help.
    14·1 answer
  • when chemical x is added to a certain liquid, it breaks down into chemicals y and z. it is not possible to simplify chemicals y
    7·1 answer
  • What is the main source of energy in this forest ecosystem
    14·1 answer
  • Which ion is the only negative ion present in an aqueous solution of an Arrhenius base?
    10·1 answer
  • Rate of diffusion depends upon:
    9·1 answer
  • Turning milk into plastic easy
    5·1 answer
  • All the members of the same species living in an area is called a(n): *<br> Biosphere
    11·2 answers
  • What is the substitution reaction <br>plzz answer ​
    5·1 answer
  • Which of the following is NOT a "big idea" in chemistry?
    10·1 answer
  • Mitotic cyclins control the progression of S phase and mitosis. G1 phase and G2 phase. S phase and G2 phase. G2 phase and mitosi
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!