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vampirchik [111]
3 years ago
13

4Fe +302 + 2Fe2O3 How many grams of Fe2O3 will be produced from 10.0 g of Fe and 7.00 g of O2?

Chemistry
1 answer:
Molodets [167]3 years ago
3 0

Answer:10g of Fe produces 14.37g of Fe2O3

7g of O2 produce 46.84g of Fe2O3

Explanation:

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Why can tin (IV) sulfide and antimony (III) sulfide be separated from copper (II) sulfide and bismuth (III) sulfide by the addit
devlian [24]

Answer:

Tin (IV) sulfide and antimony (III) sulfide be separated from copper (II) sulfide and bismuth (III) sulfide by the addition of sodium hydroxide because they become soluble whereas copper (II) sulfide and bismuth (III) sulfide remain insoluble.

Explanation:

Sodium hydroxide is a  basic solution which is used as a precipitating agent for metallic ions in the laboratory.

<em>When a solution containing a mixture of the sulfides of the Group II cations,  antimony (III), copper (II), tin  (IV), and bismuth (III), is made basic by the addition of a base such as sodium hydroxide or ammonium hydroxide, the  sulfide ion concentration will increase. The sulfides of antimony (III) and tin (IV) will then become  soluble because antimony (III) and tin (IV) form stable complexes with sulfide, which are soluble in  water, while the sulfides of copper (II) and bismuth (III) do not.</em> The result is the dissolution of the antimony (III) sulfide  and tin (IV) sulfide, separating them from the copper (II) sulfide and the bismuth (III)  sulfide.

Sb₂S₃(s) + 3S²⁻(aq) ----> 2SbS₃³⁻(aq)

SnS₂(s) + S²⁻(aq) ----> SnS₃³⁻(aq)

7 0
3 years ago
What can be said about a small Ksp value?
fredd [130]

Answer:

The correct answer is option B.

Explanation:

Solubility product is defined as the product of concentration of ions present in a solution each raised to the power its stoichiometric ratio.

The equation for the ionization of the magnesium hydroxide is given as:

A_xB_y\leftrightharpoons xA^{y+}+yB^{x-}

                      xS      yS

Here, S = concentration of compound dissolved in solvent via dissociation

Expression for the solubility product of A_xB_y will be:

K_{sp}=[A^{y+}]^x[B^{x-}]^y\\\\K_{sp}=(xS)^x\times (yS)^y

As we can see,

K_{sp}\propto [S]

  • Higher the value of [S] more will be solubility of compound in a solvent.Hence, more soluble it will be.
  • Lower the value of [S] less will be solubility of compound in a solvent.Hence, less soluble it will be.

Hence, the correct answer is option B.

7 0
3 years ago
The first method of determining the chemical composition of substances in space was to _____.
garik1379 [7]
Analyze starlight transmitted to earth

6 0
4 years ago
All synthetic materials ultimately come from
Leno4ka [110]

Answer:

petroleum, a fossil fuel, is extracted from the earth and mechanically transformed into fibers for clothing.

Explanation:

synthetic materials, like polyester, nylon and acrylic, don't exist naturally but are made in factories. Synthetics are created through an industrial manufacturing process in which

7 0
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Which is larger aliter or a quart?
omeli [17]

Answer:

a liter is larger, hope that helps :)

7 0
3 years ago
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