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Tatiana [17]
3 years ago
14

Which term refers to an electrochemical cell that uses a spontaneous redox reaction to produce an electric current?

Chemistry
2 answers:
Serhud [2]3 years ago
7 0
Voltaic cell because it is the right answer
umka21 [38]3 years ago
3 0

Answer:

voltaic cell

Explanation:

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What happens to the potential energy of a book that is dropped from a desk to the floor?
Debora [2.8K]

Answer:

D.   It is converted into kinetic energy.

Explanation:

When a book is dropped from a desk to the floor, the potential energy of the book is converted to kinetic energy as it falls.

  • Potential energy of a body is the energy due to the position of the body.
  • At a particular height, the potential energy is maximum.
  • A body with mass and moving with velocity will have kinetic energy
  • As the book drops through the height, to conserve energy, the potential energy is converted to kinetic energy.
4 0
3 years ago
Pls help me I beg you
just olya [345]

Answer:

Es la c

Explanation:

Espero que te ayude

6 0
3 years ago
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How many hydrogen atoms are in 709 grams of water? Answer in units of atoms.
zimovet [89]

Answer:

26 Hydrogen atoms

Explanation:

H2O

Each hydrogen atom: 2+16 = 18g

Hence,

1 atom -> 18g

x atoms -> 709g

709/18 = 39 atoms

Therefore, 39 atoms give 709g

Hence, 26 Hydrogen atoms are used

<em>Feel free to mark it as brainliest :D</em>

4 0
3 years ago
28 Which compound yields H + ions as the only positive ions in an aqueous solution?
MrMuchimi

Answer: (4) CH_3COOH

Explanation:-

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions (OH^-) when dissolved in water and an acid is defined as a substance which donates hydronium ions (H_3O^+) in water.

1. KOH is a strong electrolyte and thus dissociate in water.KOH\rightarrow K^++OH^-

2. CH_3OH is a non electrolyte and thus do no dissociate in water.

CH_3COOH\rightarrow no reaction

3. NaOH is a strong electrolyte and thus dissociate in water.

NaOH\rightarrow Na^++OH^-

4. CH_3COOH is a weak electrolyte and thus partially dissociate in water.

CH_3COOH\rightleftharpoons CH_3COO^-+H^+

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3 years ago
Flames are the heat and light energy that is release when the chemical bonds in a substance are broken. What provides the chemic
Tpy6a [65]
Answer is C:Wax Or B:Heat
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3 years ago
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