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enyata [817]
4 years ago
15

Electrical conductivity is an example of what property

Chemistry
2 answers:
Damm [24]4 years ago
8 0

Answer:

melting point-electrical conductivity-color-density

Explanation:

Anika [276]4 years ago
3 0
<span>melting point-electrical conductivity-color-<span>density
please mark as brainliest

</span></span>
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Which sequence correctly ranks elements from largest to smallest atomic radius?
Taya2010 [7]

Answer:

\A.

Explanation: Bromine and arsenic have the same atomic radius, which is 115 and Potassium has an atomic radius of 220.

8 0
3 years ago
A solid and a liquid are shaken together in a test tube to produce a uniform liquid that does not separate into layers.
svet-max [94.6K]

that would be an insoluble

3 0
4 years ago
Balance the following redox reaction in basic solution. Cl ⒠(aq) + MnO ⒠4 (aq) → Cl 2 (g) + MnO 2 (s)
FinnZ [79.3K]

6\; \text{Cl}^{-} \; (aq) + 2\; \text{MnO}_4^{-} \; (aq)  + 4 \; \text{H}_2 \text{O} \; (l) \to 3\; \text{Cl}_2 \; (g) + 2\; \text{MnO}_2 \; (s) + 8\; \text{OH}^{-} \; (aq)

<h3>Explanation</h3>
  • The oxidation state of the manganese atom \text{Mn} changes from +7 as in \text{MnO}_4^{-} to +4 as in \text{MnO}_2.
  • There are one \text{Mn} atom in each \text{MnO}_4 ion.
  • Reducing each \text{MnO}_4^{-} ion would thus consume three electrons.
  • Similarly, the oxidation state of the chlorine atom \text{Cl} changes from -1 as in \text{Cl}^{-} to 0 as in \text{Cl}_2.
  • It takes two \text{Cl}^{-} ions to produce one \text{Cl}_2 molecule.
  • Oxidizing every two \text{Cl}^{-} would thus produce one \text{Cl}_2 while releasing two electrons.

Three \text{Cl}_2 molecules contain six chlorine atoms. Three \text{Cl}_2 would thus correspond to six \text{Cl}^{-} ions.

Combining six \text{Cl}^{-}, two \text{MnO}_4^{-} ions, three \text{Cl}_2 ions, and two \text{MnO}_2 would balance the changes in oxidation state.

6\; \text{Cl}^{-} \; (aq) + 2\; \text{MnO}_4^{-} \; (aq)  \to 3\; \text{Cl}_2 \; (g) + 2\; \text{MnO}_2 \; (s) (NOT BALANCED)

Still, the product side lacks four oxygen atoms.

  • In an acidic environment, oxygen atoms would combine with protons to produce water.
  • In a basic environment (like this one,) there are nearly no protons for oxygen atoms to combine with. Oxygen atoms will likely combine with water to produce hydroxide ions.

Each oxygen atom combine with a water molecule to produce two hydroxide ions. Adding four water molecules and eight hydroxide ions would balance the equation.

5 0
3 years ago
What type of bonds exists between neighboring water molecules?
Sindrei [870]

Answer:

covalent bonds

Explanation:

8 0
3 years ago
Which of the following compound names is obviously INCORRECT?
baherus [9]

This question comes with these answer choices:


a) K₃N (potassium nitride)

b) TiO₂ (titanium(II) oxide)

c) SnBr₄ (tin(IV) bromide)

d) PBr₅ (phosphorus pentabromide)

e) CaS (calcium sulfide)


Answer: option b) TiO₂ (titanium(II) oxide)


Justification:


a) K₃N (potassium nitride)


K⁺¹ is the correct ion (cation) of potassium: oxidation state 1+.


N⁻³ is the correct anion of nitrogen: oxidation state 3⁻.


According to accepted IUPAC nomenclature rules, the name of the anion is nitride, so the name potassium nitride is correct.

b) TiO₂ (titanium(II) oxide)


When you calcualte the oxidation state of Ti, it is 4+, since (4+) + 2(2-) = 4 - 4 = 0.


So, the oxidation number of titanium is 4, and the correct name of the compound is titanium(IV) oxide.


The name titanium(II) oxide indicates that the oxidation state of Ti is 2, which is not true.



c) SnBr₄ (tin(IV) bromide)


It is correct because the oxidation state of Sn is 4+.


d) PBr₅ (phosphorus pentabromide)


It is correct because they are using the (accepted) systematic nomenclature in which the prefix is used to indicate the number of atoms in the formula.


Penta means 5, so penta bromide indicates 5 atoms of bromine.



e) CaS (calcium sulfide)


It is correct using the systematic nomenclature, because there is one atom of Ca and one atom of S.

7 0
4 years ago
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