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
Scrat [10]
3 years ago
11

Kinda need help with these questions

Chemistry
1 answer:
padilas [110]3 years ago
6 0

11. a. Amphoteric

12. a. NH₄⁺, H₂O

Explanation:

11. A substance that can act as either an acid or a base is said to be <u>amphoteric</u>.

Water is an amphoteric substance because it can reaction with either and acid or a base.

HCl + H₂O → Cl⁻ + H₃O⁺

NH₃ + H₂O → NH₄⁺ + OH⁻

12. What are the acids in the following equilibrium reaction?

NH₃ (aq) + H₂O (l) → NH₄⁺ (aq)  +OH⁻ (aq)

H₂O water is acid 1

NH₄⁺ ammonium ion is acid 2

Learn more about:

amphoteric substances

brainly.com/question/1165259

#learnwithBrainly

You might be interested in
Does the antifreeze you put in a car radiator have a lower or higher freezing point than water
saveliy_v [14]
Hello!
Antifreeze says it in the name. This means that it helps prevent freezing. The liquid that would freeze if you wouldnt use the antifreeze is water. This means that the antifreeze has to have a higher freezing point then water, because otherwise it would only freeze faster!

Hope this helped you!
7 0
3 years ago
Using the following standard reduction potentials, Fe3+(aq) + e- → Fe2+(aq) E° = +0.77 V Ni2+(aq) + 2 e- → Ni(s) E° = -0.23 V ca
lina2011 [118]

<u>Answer:</u> The above reaction is non-spontaneous.

<u>Explanation:</u>

For the given chemical reaction:

Ni^{2+}(aq.)+2Fe^{2+}(aq.)\rightarrow 2Fe^{3+}(aq.)+Ni(s)

Here, nickel is getting reduced because it is gaining electrons and iron is getting oxidized because it is loosing electrons.

We know that:

E^o_{(Fe^{3+}/Fe^{2+})}=0.77V\\E^o_{(Ni^{2+}/Ni)}=-0.23V

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=-0.23-0.77=-1.0V

Relationship between standard Gibbs free energy and standard electrode potential follows:

\Delta G^o=-nFE^o_{cell}

As, the standard electrode potential of the cell is coming out to be negative for the above cell. Thus, the standard Gibbs free energy change of the reaction will become positive making the reaction non-spontaneous.

Hence, the above reaction is non-spontaneous.

3 0
3 years ago
An element's atomic number is 87. how many protons would an atom of this element have
andreev551 [17]
atomic number is equal to proton number
so the proton number will be 87
5 0
4 years ago
How did humans and animals adapt/survive to hurricane Katrina? AND Give examples of organisms that could not adapt/survive? PLS
guajiro [1.7K]
Some organisms that could not survive where cats, dogs, birds, horses, fish, cows, every animal that was in hurricane Katrina was affected by it. Some of these animals were able to survive and others were rescued from near death.
Most of the animals could not adapt to this change because they are not used to this type of change. The water was too strong for the fish and when the water brought the fish into any water/sea animal there was also medal because the water in through peoples houses (pretty much the man-made stuff that's not meant for sea is killing the animals in the water). 
Any animal that was left behind was affected. The animals could not adapt to this change they have never experienced something that tragic before, how they survived? Well, the animals that survived was mainly because of there natural instinct, before an earthquake or anything hits there are many animals that can sense the storm coming before it even hits and in this situation, the animal could, wake up, run to owner, flee, run to higher ground, and if they cant sense it. They see whats going on around them and then they know something is wrong.
8 0
4 years ago
Read 2 more answers
What is the average atomic weight of silver?​
Natali5045456 [20]

Answer:

107.8682 u would be the answer

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these factors makes nuclear energy unsustainable?
    7·2 answers
  • Which of the following shows both the correct formula and correct name of an acid?
    13·2 answers
  • What are the most reactive metals found on the periodic table?
    13·2 answers
  • A piece of metal has a mass of 500 g and a volume of 5 cm3. What is its specific gravity?
    7·1 answer
  • The first-order reaction, so2cl2 → so2 + cl2, has a rate constant equal to 2.20 × 10-5 s-1 at 593 k. what percentage of the init
    9·1 answer
  • The temperature of an object is directly related to A. the volume of the object. B. the motion of its particles. C. the potentia
    8·2 answers
  • What is the mass of 4.00 moles of helium
    7·2 answers
  • 5.
    10·1 answer
  • Calculate the theoretical yield for the amount of sodium carbonate produced as a result of this chemical reaction. Record your f
    6·1 answer
  • Plz help me I Am timed plz
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!