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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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The molarity of a 2 liter aqueous solution that contains 222.2 grams of dissolved calcium chloride ( CaCl2), expressed with two
sveta [45]

Answer:

The answer to your question is 1 M

Explanation:

Data

Molarity = ?

mass of CaCl₂ = 222.2 g

Volume = 2 l

Process

1.- Calculate the molar mass of CaCl₂

CaCl₂ = 40 + (35.5 x 2) = 40 + 71 = 111 g

2.- Calculate the moles of CaCl₂

                    111g of CaCl₂ ---------------- 1 mol

              222.2 f of CaCl₂  ----------------  x

                      x = (222.2 x 1) / 111

                      x = 222.2 / 111

                      x = 2 moles

3.- Calculate the Molarity

Molarity = moles / Volume

-Substitution

Molarity = 2/2

-Result

Molarity = 1

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Explanation:

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