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vlabodo [156]
4 years ago
12

Limestone is composed almost entirely of calcite which has the chemical formula caco 3. As a result, limestone is classified as

Chemistry
1 answer:
Andrei [34K]4 years ago
5 0

limestone is classified as sedimentary rock

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Butadiene c4h6 reacts with itself at 250 degrees celcius to form a dimer with the formula c8h12. The reaction is second order in
goldfiish [28.3K]

Answer:

<em>Rate</em> = k * [C₄H₆]²

Explanation:

It is possible to write the reaction as:

  • 2C₄H₆ → C₈H₁₂

The differential rate law for a simple second order reaction of the type 2A → B is:

  • <em>Rate</em> = k * [A]²

With the above information in mind, the rate law for the reaction of butadiene would be:

  • <em>Rate</em> = k * [C₄H₆]²
8 0
3 years ago
Which feature of a hypothesis leads to a new experiment
DiKsa [7]
The answer would be the ability to be tested. If a hypothesis is testable, it would of course lead you to test it. Which, by definition is a new experiment.
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From the Online Catalog to the Shelf

Libraries in the United States generally use either the Library of Congress Classification System (LC) or the Dewey Decimal Classification System to organize their books. Most academic libraries use LC, and most public libraries and K-12 school libraries use Dewey.

Explanation:

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What causes clothes from a dryer to stick together?
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Which change in oxidation number indicates oxidation? A) Ito +2 C +2 to -3 B) Ito -2 D) +3 to +2
tatuchka [14]

As there is the increase in Oxidation number from +1 to +2. Hence, the correct Option (A) i.e, 1 to +2,

<h3>What is Oxidation ?</h3>

Oxidation doesn't necessarily have anything to do with oxygen.

  • Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction.
  • When oxidation occurs, the oxidation state or oxidation number of the chemical species increases.
  • Oxidation doesn't necessarily involve oxygen! Originally, the term was used when oxygen caused electron loss in a reaction.

Hence, Option (A) indicates the oxidation as there is the increase in Oxidation number from +1 to +2.

Learn more about Oxidation here ;

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