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Inessa05 [86]
3 years ago
8

All of the following are evidence that a chemical reaction has occurred except ______.

Chemistry
1 answer:
White raven [17]3 years ago
6 0
D. all of the above are evidence of a chemical reaction
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Is baking soda an acid, base, or neutral
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Baking soda is an alkaline, or base, substance. This means that when we dissolve baking soda in water, it forms an alkaline solution. For example, a 0.1 molar solution of baking soda has a pH of around 8.3. Lemon juice contains citric acid and has a pH of around 3.

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Why is liquid mercury a good electrical conductor in terms of atomic structure?
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Mercury is a heavy, silvery-white liquid metal. Compared to other metals, it is a poor conductor of heat, but a fair conductor of electricity. ... Because this configuration strongly resists removal of an electron, mercury behaves similarly to noble gases, which form weak bonds and hence melt at low temperatures.

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Answers are in the explanation.

Explanation:

  • The half‑life of A increases as the initial concentration of A decreases. order: <em>2. </em>In the half-life of second-order reactions, the half-life is inversely proportional to initial concentration.
  • A three‑fold increase in the initial concentration of A leads to a nine‑fold increase in the initial rate. order: <em>2. </em>The rate law of second-order is: rate = k[A]²
  • A three‑fold increase in the initial concentration of A leads to a 1.73‑fold increase in the initial rate. order: <em>1/2. </em>The rate law for this reaction is: rate = k √[A]
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  • The rate of decrease of [A] is a constant. order: <em>0. </em>The rate law is: rate = k -<em>where k is a constant-</em>
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1s^2   2s^2   2p^6    3s^2    3p^6    4s^2    3d^10   4p^6    5s^2    4d^2

Explanation:

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