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Troyanec [42]
3 years ago
13

Someone please answer this

Chemistry
1 answer:
denpristay [2]3 years ago
7 0
HSNANENENBEBCASbsbebbejwjwjjwnw
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Assume that the batteries in a flashlight are rechargeable. What energy conversion would have to take place in order to recharge
zaharov [31]

Electrical to chemical energy

Explanation:

If the batteries in a flashlight are rechargeable, the energy conversion that would take place to recharge the battery is from electrical to chemical energy.

  • A battery is an electrochemical cell in which chemical reactions produces electrical currents.
  • This is a typical energy conversion from chemical to electrical energy.
  • When such batteries are to be recharged, the revere process is followed.
  • Electrical energy are used to drive chemical reactions.
  • This in turn makes the battery recharged and on its own, it can further chemical reactions to produce electrical energy.
  • During charging, the potential of the battery increases.

learn more:

Electrochemical reactions brainly.com/question/12174850

#learnwithBrainly

7 0
4 years ago
Consider the dissolution of calcium hydroxide:
Crazy boy [7]

Answer:

1. K_eq = [Ca^{2+][OH^-]^2 = K_{sp}

2. a. No effect;

b. Products;

c. Products;

d. Reactants

Explanation:

1. Equilibrium constant might be written using standard guidelines:

  • only aqueous species and gases are included in the equilibrium constant excluding solids and liquids;
  • the constant involves two parts: in the numerator of a fraction we include the product of the concentrations of products;
  • the denominator includes the product of the concentrations of reactants;
  • the concentrations are raised to the power of the coefficients in the balanced chemical equation.

Based on the guidelines, we have two ions on the product side, a solid on the left side. Thus, the equilibrium constant has the following expression:

K_eq = [Ca^{2+][OH^-]^2 = K_{sp}

2. a. In the following problems, we'll be considering the common ion effect. According to the principle of Le Chatelier, an increase in concentration of any of the ions would shift the equilibrium towards the formation of our precipitate.

In this problem, we're adding calcium carbonate. It is insoluble, so it wouldn't have any effect on the equilibrium.

b. Sodium carbonate is completely soluble, it would release carbonate ions. The carbonate ions would combine with calcium cations and more precipitate would dissolve. This would shift the equilibrium towards formation of the products to reproduce the amount of calcium cations.                                      

c. HCl would neutralize calcium hydroxide to produce calcium chloride and water, so the amount of calcium ions would increase, therefore, the products are favored.

d. NaOH contains hydroxide anions, so we'd have a common ion. An increase in hydroxide would produce more precipitate, so our reactants are favored.

3 0
3 years ago
(10 points)
frutty [35]

hope it helps

limestone layers

3 0
3 years ago
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Use the drop-down menus to identify the names of the structures in the table to the right.
krek1111 [17]

Explanation:

Use the drop-down menus to identify the names of the structures in the table to the right.

hi I didn't find the names of the structure in the table .

hope it is helpful to you

3 0
3 years ago
Read 2 more answers
If the size, mass, and arrangement of atoms affect the density of a substance. How might these factors work together to cause a
Soloha48 [4]

Answer:  The size, mass, and arrangement of atoms affect the density of a substance. How might these factors work together to cause a substance to have a high density? A substance with smaller more massive atoms that are close together is going to have a higher density.

Explanation:

8 0
3 years ago
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