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nignag [31]
3 years ago
15

Why nichrome wire is used as heating element? ​

Chemistry
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Answer:

Nichrome wire is used as a heating element because it is very stable, even at high temperatures. Unlike other metals, it will not melt even when generating large amounts of heat. Ironically, nichrome actually has low electrical resistance, the property that causes the wire to heat.

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The CO 2-ion is stabilized by (A resonance. B inductive effects. c heterolysis. D potential energy.
FromTheMoon [43]

Answer: Option (A) is the correct answer.

Explanation:

A phenomenon where delocalization of pi electrons or non-bonding electrons takes place is known as resonance.

For example, in a CO^{2-}_{3} molecule two oxygen atoms contain -1 charge. And, delocalization of pi electrons takes place in order to attain stability.

When in a molecule, there occurs unequal sharing of bonding electrons by a chain of atoms then there occurs a permanent dipole moment. And, this effect is known as inductive effect.

So, basically more difference in electronegativity of the atoms in a molecule tend to cause inductive effect.

In CO^{2-}_{3}, there is not much difference in the electronegativity of carbon and oxygen atom.

Hence, resonance effect predominates inductive effect.

Potential energy is the energy obtained by an object due to its position.

Thus, we can conclude that the CO^{2-}_{3} ion is stabilized by resonance.

4 0
4 years ago
How many moles of solute particles are present in 1 ml of aqueous 0.020 m (nh4)2co3?
Dima020 [189]
Vs = 1.0 mL = 0.001 L
c((NH4)2CO3) = <span>0.02 M
n(</span>(NH4)2CO3) = ?

For the purpose, here we will use the next equation:

c=n/V ⇒ n=cxV

n((NH4)2CO3) = 0.02M x 0.001L 

n((NH4)2CO3) = 2x10⁻⁵ mole of (NH4)2CO3 is presented in the solution


6 0
3 years ago
Which part of modern atomic theory was first developed by John Dalton?
Nuetrik [128]
C. one of the discoveries he made which gave him his fame in the scientific community was that the atom could not be destroyed
3 0
3 years ago
What is the pH of a 3.5 x 10-5 M solution of HCl?
kolezko [41]

Answer:

4.46

Explanation:

Applying,

pH = -log(H⁺)....................... Equation 1

Where H⁺ = Hydrogen ion concentration of HCl solution

From the question,

Given: H⁺ =  3.5×10⁻⁵ M

Substitute these values into equation 1

pH = -log(3.5×10⁻⁵)

pH = 4.46

Hence the pH of HCl solution is 4.46

4 0
3 years ago
How are organising my time?
igomit [66]

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