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lianna [129]
3 years ago
7

Explain the differences among nonpolar covalent bonds, polar covalent bonds, and ionic bonds.

Chemistry
1 answer:
docker41 [41]3 years ago
3 0
Nonpolar covalent bonds are a type of chemical bond where 2 atoms share electrons with each other.
Polar covalent bonds are the same as nonpolar covalent bonds, but a pair of electrons are unequally shared between 2 atoms. 
Ionic bonds are a type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Hope this helps! ^-^
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The quantity of antimony in a sample can be determined by an oxidation–reduction titration with an oxidizing agent.
kotegsom [21]

Answer:

The percentage is   k  = 20.8%

Explanation:

From the question we are told that

    The mass of the stibnite is  m_s  = 5.86 \ g

   The volume of   KBrO3(aq) is  V  = 26.6 mL =  26.6 *10^{-3} \ L

     The concentration  of   KBrO3(aq) is  C  = 0.125 M

Now the balanced ionic  equation for this reaction is

        BrO_3 ^{-}+ 3Sb^{3+} + 6H^{+}  \to  Br^{1-} + 3Sb^{5+} + 3H_2O

The number of moles of   BrO_3 ^{-} is  

     n =  C *V

substituting values

     n =  26.6*10^{-3} *  0.125

     n = 0.003325 \ mols

from the reaction we see that 1 mole of BrO_3 ^{-}  reacts with 3 moles of  Sb^{3+}

so 0.003325 moles will react with x moles of  Sb^{3+}

Therefore

               x = \frac{0.003325 * 3}{1}

              x = 0.009975 \ mols

Now the molar mass of Sb^{3+} is a constant with a values of  Z =  121.76 \  g/mol

Generally the mass of  Sb^{3+} is mathematically represented as

        m  =  x * Z

substituting values

        m  =  1.215 \ g

The percentage of  Sb(antimony) in the overall mass of the stibnite is mathematically evaluated as

            k  = \frac{1.215}{5.85 } * 100

           k  = 20.8%

   

4 0
3 years ago
Read 2 more answers
A partir de 140 g de n2 y una cantidad de h2 se obtuvo 153G de NH³. Cual es el % de rendimiento de la reacción química
DiKsa [7]

Respuesta:

90.0 %

Explicación:

Paso 1: Escribir la ecuación química balanceada

N₂ + 3 H₂ ⇒ 2 NH₃

Paso 2: Calcular el rendimiento teórico de NH₃ a partir de 140 g de N₂

En la ecuación balanceada, participan de N₂: 1 mol × 28.01 g/mol = 28.01 g y de NH₃: 2 mol × 17.03 g/mol = 34.06 g.

140 g N₂ × 34.06 g NH₃ /28.01 g N₂ = 170 g NH₃

Paso 3: Calcular el rendimiento porcentual de NH₃

El rendimiento experimental de NH₃ es 153 g. Podemos calcular el rendimiento porcentual usando la siguiente fórmula.

R% = rendimiento experimental / rendimiento teórico × 100%

R% = 153 g / 170 g × 100% = 90.0 %

4 0
3 years ago
To change an object from a liquid to a gas _________ must happen
nignag [31]
Evaporation!
-Melting is a solid to a liquid
-sublimation is directly from a solid to a gas
-condensation gas to liquid
4 0
3 years ago
What is Peloponnese?
Lisa [10]

Peloponnese: The mountainous southern peninsula of Greece, connected to central Greece by the Isthmus of Corinth. Greek name Pelopónnisos.

8 0
4 years ago
What is the critical angle for the interface between water and diamond?
zlopas [31]

The critical angle for the interface between water and diamond is 33.4 degrees.

<h3>What is the critical angle?</h3>

The greatest angle at which a ray of light traveling through one transparent medium can hit the border between that medium and a second of lower refractive index.

It strikes the border without being completely reflected within the first medium is called the critical angle in optics.

Thus, the critical angle for the interface between water and diamond is 33.4 degrees.

Learn more about the critical angle

brainly.com/question/3314727

#SPJ4

3 0
3 years ago
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