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Troyanec [42]
3 years ago
12

Which of the following is a true statement? A. In the process of freezing, a liquid loses kinetic energy and turns into a solid.

B. In the process of freezing, a solid loses kinetic energy and turns into a liquid. C. In the process of freezing, a liquid gains kinetic energy and turns into a solid. D. In the process of freezing, a solid gains kinetic energy and turns into a liquid.
Chemistry
2 answers:
Firlakuza [10]3 years ago
7 0

The correct answer is A. In the process of freezing, a liquid loses kinetic energy and turns into a solid.

Explanation:

The kinetic energy in a substance is produced by the movement of the participles in it. Additionally, this depends on the state of the substance, for example, in gases substances move freely and therefore produce more kinetic energy than in liquids in which the movement is more restricted or in solids in which particles only vibrate. This means, in the process of freezing that implies a liquid turning into a solid the particles lose kinetic energy as their movement is limited in a solid state.

malfutka [58]3 years ago
4 0

its A. In the process of freezing, a liquid loses kinetic energy and turns into a solid. good luck ;)

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A river carries pieces of granite from a mountain to the sea.
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The Granite is eroded, weathered, and is being transported away. The Granite will then be deposited into a lake or a sea. This could also go to help form a new sedimentary rock.

Explanation:

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Which tool can be used to measure the volume of a liquid to one decimal place?
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The tool to measure the liquid is a measuring cylinder.
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The reactant concentration in a first-order reaction was 8.10×10−2 M M after 15.0 s s and 1.80×10−3 M M after 90.0 s s . What is
kipiarov [429]

Answer:

The answer to the question is

The rate constant for the reaction is 1.056×10⁻³ M/s

Explanation:

To solve the question, e note that

For a zero order reaction, the rate law is given by

[A] = -k×t + [A]₀

This can be represented by the linear equation y = mx + c

Such that y = [A], m which is the gradient is = -k, and the intercept c = [A]₀

Therefore the rate constant k which is the gradient is given by

Gradient = \frac{[A]_{2} - [A]_{1}  }{t_{2} - t_{1}  }  where [A]₁ = 8.10×10⁻² M and [A]₂ = 1.80×10⁻³ M

= \frac{1.80*10^{-3} M- 8.10*10^{-2} M}{90 s - 15 s} = -0.001056 M/s = -1.056×10⁻³ M/s

Threfore k = 1.056×10⁻³ M/s

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I need help with number 17 pls someone pls ???
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Answer:

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Explanation:

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Write a net ionic equation to show that benzoic acid, C6H5COOH, behaves as a Brønsted-Lowry acid in water.
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Answer:

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

Explanation:

According to Brönsted-Lowry acid-base theory, an acid is a substance that donates H⁺. Let's consider the molecular equation showing that benzoic acid is a Brönsted-Lowry acid.

C₆H₅COOH(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The complete ionic equation includes all the ions and molecular species.

C₆H₅COO⁻(aq) + H⁺(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

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