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
vlada-n [284]
3 years ago
6

Which ion was formed by providing the second ionization energy to remove an electron?

Chemistry
1 answer:
DerKrebs [107]3 years ago
6 0
If we remove 2 electrons, the new charge will be positive by 2 units. Hence, the ion is Ca^{2+}.
You might be interested in
What mass of carbon monoxide must be burned to produce 175 kj of heat under standard state conditions?
Soloha48 [4]
When 2.50 g is burned then in oxygen then 1.25kj of heat is produced.
8 0
3 years ago
Read 2 more answers
Helpp im timed Part A
aksik [14]

Any deviation in the image of an object when light passing from one medium to other is assciated to the phenomenon of refraction.

<h3>What is refraction ?</h3>

It is the deflection from a straight path undergone by a light ray while passing from one medium (such as air) into another (such as glass) in which its velocity is different.


Basically, the light refraction gives the pencil a slight magnifying effect, which makes the angle appear bigger than it actually is, causing the pencil to look crooked.

<h3 />
  • After Looking at the pencil from the side of a clear glass or resealable plastic bag filled three-fourths with water, we will see the light bends around the pencil, causing it to look bent in the water.

  • When the pencil tilt from side to side, It looks so dramatically broken on looking at it from different angles.
    We can magically “fix” the broken pencil by changing where the pencil is positioned in the glass.

Learn more about Light here;
brainly.com/question/22216162

#SPJ1

3 0
2 years ago
Find δs∘ for the reaction between nitrogen gas and hydrogen gas to form ammonia:12n2(g) 32h2(g)→nh3(g)
Dima020 [189]

Nitrogen (N2) and hydrogen (H2) gases react to form ammonia, which requires -99.4 J/K of standard entropy (ΔS°).

What is standard entropy?

The difference between the total standard entropies of the reaction mixture and the summation of the standard entropies of the outputs is the standard entropy change. Each entropy in the balanced equation needs to be compounded by its coefficient, as shown by the letter "n."

Calculation:

Balancing the given reaction following-

1/2 N₂(g) + 3/2 H₂ (g)→ NH₃ (g)

ΔS° = [1 mol x S° (NH₃)g] - [1/2 mol x S° (N₂)g] - [3/2 mol x S°(H₂)g]

Here S° = standard entropy of the system

Insert into the aforementioned equation all the typical entropy values found in the literature:

ΔS° = [1 mol x 192.45 J/mol.K] - [1/2 mol x 191.61 J/mol.K] - [3/2 mol x 130.684 J/mol.K]

⇒ΔS° = - 99.4 J/K

Therefore, the standard entropy, ΔS° is -99.4 J/K.

Learn more about standard entropy here:

brainly.com/question/14356933

#SPJ4

5 0
1 year ago
When a tip of a plant is cut it doesn't grow well​
aleksandr82 [10.1K]

Explanation:

the tip of a growing plant contains special rapidly diving cells called apical meristem ,these cells are responsible for increase in the length of the plant . if we cut out these cells ,length growth of the plant will be stunned as these cells are not present anyplace else.

8 0
3 years ago
Read 2 more answers
Which of the following is a property of a metal?
BaLLatris [955]
The correct answer is the 3rd option Ductility is a property of a metal. It is the ability of a material to deform under tensile stress.It is characterized by the ability to be stretched into wire-like form which is an ability of metals.
8 0
3 years ago
Other questions:
  • An example of an extensive physical property is
    15·1 answer
  • How was Rutherford’s gold foil experiment inconsistent with the plum pudding model of the atom?
    12·1 answer
  • Complete the paragraph about the formation of sodium phosphide.
    13·1 answer
  • Why is it important to separate material from mixture?
    8·1 answer
  • Empirical formula for C10H8
    6·2 answers
  • Fill in the blank.<br><br>If you gone call me a _____ make sure you put _______ infront of it
    11·1 answer
  • What is the volume, in liters, of a 0.2 M solution containing 8.5 grams of AgNO3?
    5·1 answer
  • Need some URGENT HELP please
    14·1 answer
  • SnBr2<br><br> what is the name of this formula?
    12·1 answer
  • Identify the element symbol<br> 1s22s22p63s23p64s23d104p65s24d5
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!