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Lana71 [14]
2 years ago
10

The price of a dishwasher was reduced from $400 to $200 because it was on clearance. By what is the percent decrease in price of

the dishwasher?
Biology
1 answer:
spin [16.1K]2 years ago
7 0

Answer:

It should be 50 percent :)

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Which of the following best represents the relationship of the concentration of hydrogen ions between water, vinegar, and ammoni
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Answer: The second image best represents the relationship of the concentration of hydrogen ions between water, vinegar and ammonia.

Explanation: pH is the measure of alkalinity and acidity of a substance in a logarithmic scale.

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pH=-\log[H^+]

The solutions which lie in the pH range of 0 - 6.9 are considered as acidic solutions and they have more hydrogen ion concentration.

The solution which has a pH value of 7 is considered as a neutral solution and this solution has same hydrogen and hydroxide ion concentration.

The solutions which lie in the pH range of 7.1 - 14 are considered as basic solutions and they have less hydrogen ion concentration.

  • For vinegar, the hydrogen ion concentration is very high.
  • For water, the hydrogen ion concentration will be equal to the hydroxide ion concentration.
  • For ammonia, the hydrogen ion concentration is very less.
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3 years ago
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Colt1911 [192]

Answer:

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The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria. Electrons pass from one member of the transport chain to the next in a series of redox reactions. The energy released in these reactions is captured as a proton gradient, which in turn is used to form ATP in a process called chemosmosis.

These transport molecules, in the inner mitochondrial membrane, are reduced and oxidized, accepting electrons and transferring them to the next molecule, electrons descending from high energy levels to lower ones, that is, from one energy-generating carrier to another. When lowering to other levels, energy is released that will be used in the synthesis of ATP by oxidative phosphorylation.

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On average, adolescents need how many hours of sleep each night for proper growth and brain development?
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Three major forms of DNA are double stranded and connected by interactions between complementary base pairs. These are terms A-form, B-form,and Z-form DNA.

Hope this helps!

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