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lions [1.4K]
2 years ago
13

Identify the type of the bond​

Chemistry
1 answer:
julsineya [31]2 years ago
8 0
That is phosphorus trichloride and a COVALENT BOND

Cl needs one electron and P has metallic character, it donates electron easy
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A student reacted NiS2 (MM = 122.83 g/mol) with O2 (MM=32.00 g/mol) to make SO2 (MM=64.07 g/mol) according to this balanced equa
Mice21 [21]

Answer:

Theoretical yield of SO₂ is 1.56 × 10² g

Explanation:

Given data:

Mass of NiS₂ = 1.50 ×10² g

Mass of O₂ = 2.420 ×10² g

Theoretical yield of SO₂ = ?

Solution:

Chemical equation:

2NiS₂ + 5O₂ → 2NiO + 4SO₂

Moles of NiS₂:

Number of moles = mass/ molar mass

Number of moles = 1.50 ×10² g / 122.83 g/mol

Number of moles = 1.22 mol

Moles of O₂:

Number of moles = mass/ molar mass

Number of moles = 2.420 ×10² g / 32 g/mol

Number of moles = 7.56 mol

Now we compare the moles of SO₂ with  NiS₂ and O₂.

                  NiS₂            :      SO₂

                    2                :        4

                   1.22             :       4/2×1.22 = 2.44

                    O₂               :          SO₂

                     5                :           4

                     7.56           :           4/5×7.56 =6.05

Moles of SO₂ produced by NiS₂ are less it will limiting reactant.

Mass of SO₂ = moles × molar mass

Mass of SO₂ = 2.44 mol ×  64.07 g/mol

Mass of SO₂ = 156.33 g

So theoretical yield of SO₂ is 1.56 × 10² g

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When barium hydroxide is mixed with ammonium chloride, a fall in temperature is observed why? plz explain in detail
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Ammonium chloride has ammonium (NH4 +) part which is slightly acidic and Barium Hydroxide is a strong base.

You can see that an acid-base reaction will occur.

In this case :

Its highly endothermic reaction

Forms aqueous ammonia (mind that ammonia is highly water soluble gas so no effervesence) and Barium Chloride which is water soluble.

Ba(OH)2 +NH4Cl ——->BaCl2 + NH3 +H2O (unbalanced)

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In the northern hemisphere I believe, Scorpius is most visible by looking to the south during July and August around 10:00 PM. The constellation remains visible until mid-September. In the southern hemisphere, Scorpio appears very high in the northern part of the sky until close to the end of September.

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