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
Ulleksa [173]
3 years ago
8

Which of the following is false about a spontaneous chemical reaction that generates electricity:a. Oxidation and reduction half

-reactions occur at electrodes in electrochemical cells.b. All electrochemical reactions involve the transfer of electrons.c. Reduction occurs at the cathode.d. Oxidation occurs at the anode.e. All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemical reactions.
Chemistry
1 answer:
Vedmedyk [2.9K]3 years ago
6 0

Answer: e. All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemical reactions.

Explanation:

Electrochemical cell or galvanic cell or voltaic cell is a cell which converts chemical energy to electrical energy.

There are two electrodes in an electrochemical cell , where one is called as anode and one is called as cathode.

At cathode reduction takes place and at anode oxidation takes place.Thus the electrons generated at anode travel towards cathode and flow of electrons lead to generation of electricity.

Thus chemical reactions lead to generation of electricity.

Thus the statement that all voltaic cells involve the use of electricity to initiate nonspontaneous chemical reactions is false.

You might be interested in
When sodium metal is treated with water we get gas which is absorbed by palladium metal is ?<br>​
Scilla [17]

that gas is called hydrogen gas

8 0
4 years ago
Why are the fruit and vegetable sections called the produce aisle?
QveST [7]
Fruits and vegetables are in the produce aisle because they are plants, and plants are producers.
Producers are organisms that create energy on their own through various processes depending on the organism. 
6 0
3 years ago
What is the function of tendons?
nika2105 [10]

Answer:

A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.

Explanation:

3 0
3 years ago
Se construye una pila galvánica con una barra de cobre sumergida en una disolución 1M de cationes Fe+2 y una barra de plata sume
pashok25 [27]

Answer:

El potencial celular estándar, E_{cell} is +0.46 V

Explanation:

Las reacciones de media célula son;

Media reacción del ánodo Cu²⁺ + 2e⁻ ↔ Cu, E ° = 0.34 V

Media reacción catódica 2Ag + 2e⁻ ⁻ 2Ag, E ° = 0.80 V

Sin embargo tenemos para hierro Fe²⁺ + 2e⁻ ↔ Fe, E ° -0.44 V

y Fe³⁺ + e⁻ ↔ Fe²⁺, E ° = 0.77 V

 que es más alta que la del cobre presente, por lo tanto, el cobre se oxidará en el ánodo

Por lo tanto, en el ánodo, tendremos

Cu → Cu²⁺ + 2e⁻ (E ° = -0.34 V)

En el cátodo

2Ag + 2e⁻ → 2Ag (E ° = 0.80 V)

E_{cell} = E_c + E_a = -0.34 + 0.8 = +0.46 \, V

El potencial celular estándar, E_{cell} = +0.46 V

4 0
3 years ago
How are acids and bases defined by bronsted lowry?​
lesantik [10]

A Bronsted-Lowry acid is a chemical species that donates one or more hydrogen ions in a reaction. In contrast, a Bronsted-Lowry base accepts hydrogen ions. When it donates its proton, the acid becomes its conjugate base. A more general look at the theory is as an acid as a proton donor and a base as a proton acceptor. :)

4 0
3 years ago
Other questions:
  • By which process is a precipitate most easily separated from the liquid in which it is suspended
    5·2 answers
  • Need help please!!!!!!!!
    7·1 answer
  • How many moles of KCl would be dissolved in 4 L of water to make a 2 M solution?
    5·1 answer
  • Rachel wants to test how sunlight impacts plant growth over time. She will add varying amounts of light to different sets of pla
    6·1 answer
  • WHat do particles move in a solid by?
    12·2 answers
  • Find the co valance of c in C2S2 ​
    8·1 answer
  • SOMEONE PLEASE HURRY AND HELP ME!!! WILL GIVE 100 pts!!!!!!
    8·2 answers
  • 7. Which of the following is a proof that light travels in a straight line?
    8·1 answer
  • In lewis structures, a solid line is used to represent...
    11·1 answer
  • PLEASE help i will give brainly if someone answers A pleeease help it will help me answer my other questions
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!