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
serg [7]
3 years ago
15

Which represents the self-ionization of water at 25°C? H2O + H2O 2H2 + O2 H2O + H2O H2O2 + H2 H2O + H2O 4H+ + 2O2- H2O + H2O H3O

+ + OH-
Chemistry
2 answers:
artcher [175]3 years ago
8 0

Answer: Option (d) is the correct answer.

Explanation:

When molecules of same substance combine together to result in the formation of ions then this type of reaction is known as self-ionization.

For example, H_{2}O + H_{2}O \rightarrow H_{3}O^{+} + OH^{-}

So, here two molecules of water are combining and they result in the formation of hydronium ion (H_{3}O^{+}) and hydroxide ion (OH^{-}).

Hence, this reaction is a self-ionization reaction.

Vitek1552 [10]3 years ago
6 0
The fourth answer is correct 
H20 + H20  H30 + 0H-
You might be interested in
Mercury has a density of 13.6 grams/mL, what is this density in cg/L?
Firdavs [7]
It would be 4.6cgL not sure tho because I didint do that good in this
4 0
2 years ago
Convert 6.33×10−6 cg to nanograms.
tensa zangetsu [6.8K]
5.73e+8 hope this help
5 0
3 years ago
The acid dissociation constant Ka of boric acid (H3BO3) is 5.8 times 10^-10. Calculate the pH of a 4.4 M solution of boric acid.
madam [21]

Answer: The pH of a 4.4 M solution of boric acid is 4.3

Explanation:

H_3BO_3\rightarrow H^+H_2BO_3^-

at t=0  cM              0             0

at eqm c-c\alpha        c\alpha          c\alpha  

So dissociation constant will be:

K_a=\frac{(c\alpha)^{2}}{c-c\alpha}

Give c= 4.4 M and \alpha = ?

K_a=5.8\times 10^{-10}

Putting in the values we get:

5.8\times 10^{-10}=\frac{(4.4\times \alpha)^2}{(4.4-4.4\times \alpha)}

(\alpha)=0.000011

[H^+]=c\times \alpha

[H^+]=4.4\times 0.000011=4.8\times 10^{-5}M

Also pH=-log[H^+]

pH=-log[4.8\times 10^{-5}]=4.3

Thus pH of a 4.4 M H_3BO_3 solution is 4.3

3 0
3 years ago
Arrange ZN HG CU AU metals in order of decreasing activity with the most active first
Andrej [43]
  • AU ZN CU HG

Explanation:

hope it helps you

6 0
3 years ago
Oxygen atoms have six outer electrons<br><br> Write the symbol for an oxide ion.
Shkiper50 [21]

Answer:

O^{2-} is the symbol for an oxide ion

7 0
3 years ago
Other questions:
  • What is the source of energy used to react chlorine with methane?
    8·2 answers
  • List three evidences of physical and chemical change. ( If you know only one or two please write them anyways please)
    15·1 answer
  • What element is used in light bulbs as a filament???? help rly need help
    8·1 answer
  • Which element from group 2A will form an ion that will have 36 electrons?
    11·1 answer
  • Molar mass of c(no3)2
    8·1 answer
  • Using the element above answer the following question:
    14·1 answer
  • Drop the insta babes :)​
    7·2 answers
  • (Exercise 5.2.14 modified) A common method used to produce bleach (sodium hypochlorite) is by the reaction Cl2 + 2NaOH  NaCl +
    7·1 answer
  • 50 Points
    10·2 answers
  • The pressure needed to pump blood back to the heart is produced by the _____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!