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e-lub [12.9K]
3 years ago
5

What is an electromagnet? Give three uses of electromagnet?

Chemistry
2 answers:
Serjik [45]3 years ago
7 0

<u>Electromagnet</u> - the strong magnetic field produced inside a solenoid can be used to magnetize a piece of magnetic material like soft iron when placed inside the coil. the magnet so formed is called electromagnet. the magnetic effect remains only till the current is flowing through the solenoid.

<h3><u>Uses</u><u> </u><u>of</u><u> </u><u>electromagn</u><u>et</u></h3>

electromagnet is used in electric bells

electromagnet is used in electric motors electromagnet is used in telephone diagrams

electromagnet is used in for sorting scrap metals

Hope it helps u

Leona [35]3 years ago
4 0
A soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
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2 years ago
What is a molecular formula?
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The symbolic representation of its compound and its composition. 

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5 0
2 years ago
Calculate the average reaction rate expressed in moles h2 consumed per liter per second
djyliett [7]

Answer:

Average rate of reaction expressed in moles H₂ consumed per liter per second = 0.0025 M/s = 0.0025 mol/L.s

Explanation:

The complete, correct Question, is presented in the attached image to this answer.

The average rate of reaction in terms of the reactant is defined as the total amount of reactant consumed over a period of time divided by total period of time.

Mathematically,

Average rate of reaction = (change in concentration of H₂ over a period of time) ÷ (total period of time)

Average rate of reaction = (-ΔC)/(Δt)

The minus sign is there because the concentration of reactants reduce with time.

change in concentration of H₂ = -ΔC

= -(0.02 - 0.03) = 0.01 M

Time = Δt = 4 - 0 = 4.0 s

Average rate of reaction = (0.01/4) = 0.0025 M/s

We could solve for the average rate of reaction expressed in moles Cl₂ consumed per liter per second

change in concentration of Cl₂ = -ΔC

= -(0.04 - 0.05) = 0.01 M

Time = Δt = 4 - 0 = 4.0 s

Average rate of reaction = (0.01/4) = 0.0025 M/s = 0.0025 mol/L.s

Hope this Helps!!!

8 0
3 years ago
If the temperature of the water were 0°C and the pressure was above 760 mm Hg, what phase would the water be in?
viva [34]
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2 years ago
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