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kow [346]
1 year ago
10

What is the name of a substance that contains a useful element which can be extracted from it?

Chemistry
1 answer:
dalvyx [7]1 year ago
7 0

The name of a substance that contains a useful element which can be extracted from it is ore.

ore can be defined as the mineral from which useful substance can be extracted and it contains more valuable substances. ore is deposited of one or more precious mineral in earth crust.  examples of ore is iron ore : hematite , magnetite , copper ore : pyrite , borntite, zinc ore : sphalerite, zinc blende, calamite.

The Four types of ore  are given as follows :

  • Ore oxide
  • Ore halides
  • Ore carbonates
  • sulphide ore

Thus, The name of a substance that contains a useful element which can be extracted from it is ore.

To learn more about ore here

brainly.com/question/4712893

#SPJ1

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Explanation:

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A student calculates that the volume of his textbook is 991.880 cm3. what is the volume written with 3 significant figures?
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The volume of the textbook calculated by the student written to 3 significant figures is 992cm³

  • According to this question, a student calculates the volume of his textbook and arrived at an answer of 991.880 cm³.

  • To round up this digit to 3 significant figures, which means that only 3 significant numbers should appear in the answer.

  • To do this, the number after the third number is 8, which means we can round up the value of 1 to 2. Hence, the volume of the textbook calculated by the student is 992cm³ in 3 s.f.

Learn more at: brainly.com/question/16563962?referrer=searchResults

7 0
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In the Formula 3H2O what is the 3 called
vekshin1

Its very simple .

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Harlamova29_29 [7]

The atom that would gain two electrons to fill its valence energy level is S(sulfur)

This is because s (sulfur) is in atomic number 16 with 2.8.6 of [Ne] 3s^2 2p^4 electronic configuration. This implies that sulfur has 6 valence electron and therefore it require two electron to fill its valence energy level and obtain 18 rule electrons.

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