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serious [3.7K]
4 years ago
9

A major difference between sound recordings made by Emile Berliner and those made by Thomas Edison was that ______.

Social Studies
1 answer:
DENIUS [597]4 years ago
3 0

<u>Full question:</u>

A major difference between sound recordings made by Emile Berliner and those made by  Thomas Edison was that ______.

A. Berliner's disks were flat

B. Edison's disks could be mass produced

C. Edison's disks were coated with lamp black

D. Berliner's disks were made of vinyl

E. None of the above.

<u>Answer:</u>

A major difference between sound recordings made by Emile Berliner and those made by  Thomas Edison was that  Berliner's disks were flat

<u>Explanation:</u>

Thomas Edison created recorded sound technology, but Emile Berliner's designs began to its mass spread. Berliner flat record disk ultimately supplanted the added flimsy and clumsy Edison cylinders as users' sound technology of preference.

The disk design made flat enhanced the pattern for extent manufactured business sound disks and was the forerunner of nowadays discs patterns. The designated sound-component of the Berliner Collection consists of various disc records generated by the Berliner Gramophone Company.  Thomas Edison disk consisted of a thin coating of a phenolic resin

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3 years ago
Which list has the classes of elements in order from most reactive to least reactive?
zalisa [80]

This question is incomplete because it is lacking the necessary answer options, which I have provided below:

A. Alkaline earth metal; alkali metal; transition metal.

B. Alkali metal; transition metal; alkaline earth metal.

C. Alkali metal; alkaline earth metal; transition metal.

D. Transition metal; alkaline earth metal; alkali metal

So, given your question, the list which has the classes of chemical elements in order from most reactive to least reactive is: C. Alkali metal; alkaline earth metal; transition metal.

A chemical property refers to the properties of a chemical element or compound (substance) that is observable and measurable during a chemical reaction.

Some examples of the chemical properties of a chemical element or compound (substance) are;

  • Tarnishing.
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Chemical reactivity is a chemical property that determines how readily a chemical element bonds with other chemical elements, in order to form a new chemical compound (substance).

As a general rule, the ability of a chemical element to bond with other chemical elements is highly (largely) dependent on the number of valence electrons in the outermost shell of its atom.

Hence, chemical elements with fewer number of valence electrons are the most reactive while those with more valence electrons are least reactive.

  • Alkali metals = 1 valence electrons.
  • Alkaline earth metal = 2 valence electrons.
  • Transition metal = 2 valence electrons.

From the above description, we can deduce that the classes of chemical elements in order from most reactive to least reactive is: Alkali metal, alkaline earth metal and transition metal.

Find more information: brainly.com/question/18214726

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3 years ago
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Answer:

Answer below

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