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
Temka [501]
2 years ago
8

When atoms gain electrons, they can become larger, because the addition of an electron increases electrostatic repulsion.

Chemistry
1 answer:
astra-53 [7]2 years ago
6 0

Answer:True

Explanation: An anion has a larger radius than a neutral atom because it gains valence electrons. There are added electron/electron repulsions in the valence shell that expand the size of the electron cloud, which results in a larger radius for the anion.

hit the crown for me pls :)

Have a great day

You might be interested in
Na2CO3 + CO2 + H2O → NaHCO3
Veseljchak [2.6K]

Answer:

i think the answer is d

Explanation:

8 0
3 years ago
A 100.0 mL solution containing 0.864 g of maleic acid (MW=116.072 g/mol) is titrated with 0.276 M KOH. Calculate the pH of the s
Lilit [14]

Answer:

pH = 1.32

Explanation:

                 H₂M + KOH ------------------------ HM⁻ + H₂O + K⁺

This problem involves a weak diprotic acid which we can solve by realizing they amount  to buffer solutions.  In the first  deprotonation if all the acid is not consumed we will have an equilibrium of a wak acid and its weak conjugate base. Lets see:

So first calculate the moles reacted and produced:

n H₂M = 0.864 g/mol x 1 mol/ 116.072 g  =  0.074 mol H₂M

54 mL x  1L / 1000 mL x 0. 0.276 moles/L = 0.015 mol KOH

it is clear that the maleic acid will not be completely consumed, hence treat it as an equilibrium problem of a buffer solution.

moles H₂M left = 0.074 - 0.015 = 0.059

moles HM⁻ produced = 0.015

Using the Henderson - Hasselbach equation to solve for pH:

ph = pKₐ + log ( HM⁻/ HA) = 1.92 + log ( 0.015 / 0.059) = 1.325

Notes: In the HH equation we used the moles of the species since the volume is the same and they will cancel out in the quotient.

For polyprotic acids the second or third deprotonation contribution to the pH when there is still unreacted acid ( Maleic in this case) unreacted.

           

3 0
3 years ago
In the Polyacrylamide and Agarose Gels lab, when working with your protein or DNA sample you must wear:
blagie [28]
It’s a. All of these, you’re welcome
6 0
3 years ago
Read 2 more answers
Why does the electrical conductivity of ionic compounds change when they are dissolved in water?
meriva
Ionic compounds conduct electricity when dissolved in water, because the dissociated ions can carry charge through the solution. Molecular compounds don't dissociate into ions and so don't conduct electricity in solution. Electrical conductivity of the compound in liquid form
3 0
2 years ago
When air pressure rapidly falls, what weather change usually occurs?
Mama L [17]

hope this helps

Explanation:

a prolong storm will occur

that's what I found

8 0
3 years ago
Other questions:
  • Is helium a metal, non metal or metalloid?
    5·1 answer
  • Which of the following properties would be the same among isotopes of the same element?
    15·1 answer
  • How many moles of helium gas are contained in a 4.0-L flask at STP?
    7·2 answers
  • The electron domain and molecular geometry of bro2- is __________.
    14·2 answers
  • Two sample of carbon tetrachloride are decomposed into their constituent elements. One sample produces 32.4 g of carbon and 373
    10·1 answer
  • The hydroxyl radical, a fragment of water vapor known as the "atmospheric cleanser", with a chemical formula of OH, has a global
    8·1 answer
  • Which of these requires accurate coefficients in a reaction?
    7·1 answer
  • Which one is it? Please? ​
    11·2 answers
  • In a sample of oxygen gas at room temperature, the
    14·1 answer
  • Escribe la diferencia entre economia y geografia economica​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!