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IrinaVladis [17]
3 years ago
8

Which of these substances will conduct electricity? CuSO4(s) CuSO4(aq) C5H12(l) CO2(g)

Chemistry
1 answer:
lara31 [8.8K]3 years ago
5 0

Answer:

CuSO4(aq)

Explanation:

The aqueous for of CuSO₄ is an electrolyte and it will conduct electricity.

CuSO₄ is an ionic substance and in solid state, it will not have the ability to conduct electricity.

  • In aqueous form, it will contain free mobile ions which serves as carriers of electric current.
  • In the solid state, the ions are arranged into a crystal lattice and will not conduct a current of electricity.
  • The remaining given compounds will not conduct electricity as they are non-polar and do not have free mobile electrons.
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A certain atom has a nucleus containing six protons and eight neutrons and has six electrons orbiting the nucleus
zavuch27 [327]

Answer:

The answer is a carbon isotope.

Explanation:

Carbon has 6 protons and electrons so the atom is neutral.

However it is a carbon isotope because it has more neutrons than protons so be aware of that

5 0
3 years ago
1. Calculate the heat change associated with cooling a 350.0 g aluminum bar from
Amanda [17]

Answer:

14175 j heat released.

Explanation:

Given data:

Mass of aluminium = 350.0 g

Initial temperature = 70.0°C

Final temperature = 25.0°C

Specific heat capacity of Aluminium = 0.9 j/g.°C

Heat changed = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Heat change:

ΔT = Final temperature - initial temperature

ΔT = 25.0°C - 70°C

ΔT = -45°C

Q = m.c. ΔT

Q = 350 g × 0.9 j/g.°C  × -45°C

Q = -14175 j

7 0
3 years ago
In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current
lapo4ka [179]
<h3><u>Answer;</u></h3>

Magnets

In large generators in power plants, <u>magnets</u> rotate inside a coil of wire to produce an electric current.

<h3><u>Explanation;</u></h3>
  • Generators are devices that use electromagnetic induction to convert mechanical energy to electrical energy.
  • In power plants, large wheel known as turbine that rotates when pushed by steam,wind, or water and provides mechanical energy to a generator.
  • <u><em>Generators are used in power plants and have very large quantities of copper wire spinning around inside very large magnets, at very high speeds. A turbine spins the shaft that runs the generator. Eventually, electric current is generated.</em></u>
8 0
3 years ago
Calculate the molarity of hydroxide ion in an aqueous solution that has a poh of 5.00
Simora [160]

Answer:

1.00 x 10^-5 M

Explanation:

pOH=-log[OH^-]

so

[OH^-]=10^(-pOH)

=10^-5

=1.00 x 10^-5 M

4 0
3 years ago
What can you infer about copper's properties?
tiny-mole [99]

Answer:

good electrical conductor

lustre in appearance

7 0
3 years ago
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