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Vikki [24]
2 years ago
6

Do u like chic-fil-a

Chemistry
1 answer:
Luba_88 [7]2 years ago
6 0

Answer:

no, mcdonalds is the best

Explanation:

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A bus traveled south west for 422 kilometers. The entire trip took 3 hours. Calculate the velocity.
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A buffer solution is made using a weak acid, HA. If the pH of the buffer is 9 and the ratio of A– to HA is 100, what is the pKa
sdas [7]
To calculate the pKa of the weak acid, we use the Henderson-Hasselbalch equation. It is expressed as pH = pKa - log [HA]/[A-]. This equation takes into account the concentration of the substance that does not dissociates into ions since it is a weak acid. We caculate as follows:

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Which substance cannot be decomposed by a chemical change?
coldgirl [10]

Copper substance cannot be decomposed by a chemical change.

<h3 />
  • When heated, the copper to carbonate breaks down into copper to oxide. The copper carbonate, which is dark in colour, releases carbon dioxide as well.Because they are the simplest chemically, elements cannot be broken down by chemical processes.

  • Elements are those pure compounds that cannot be broken down by reactions, heating, electrolysis, or other common chemical processes. Examples of elements are oxygen, gold, and silver. Its makeup stays the same, though.  One instance of a physical change is melting.  A physical change is when a sample of matter experiences a change in some of its qualities but not in its identity. Water turns into water vapour when it is heated.

Learn more about copper here:

brainly.com/question/493292

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1 year ago
Which one of the following electron transitions does not correspond to an absorbtion of a quanta of light?
ziro4ka [17]
N = 4 to n = 3 is the right answer, so it' none of the above
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