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yarga [219]
3 years ago
13

The high electrical conductivity of metals is primarily due to(1) high ionization energies(2) filled energy levels(3) mobile ele

ctrons(4) high electronegativities
Chemistry
2 answers:
igomit [66]3 years ago
6 0
Answer=C

Mobile electrons bring about high electrical conductivity
Damm [24]3 years ago
5 0

The high electrical conductivity of metals is primarily due to MOBILE ELECTRONS.

Metals generally have valence electrons which are not attached to any atom, these electrons are mobile and they move around freely within the structure of metals when electric current is applied to the metals. When electric current is applied to a particular metal, free electrons will move through the metal, passing the electrical charge around as they move. The passage of the electricity will be very high if the resistance to the flow of electricity is low.

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sveticcg [70]

Answer:

0.32M

Explanation:

<u>Step 1:</u>  Balance the reaction

K2CO3 + Ba(NO3)2 ⇔ KNO3 + BaCO3

We have a 20 mL 0.2 M K2CO3 and a 30mL 0.4M Ba(NO3)2 solution

SinceK2CO3 is the limiting reactant, there will remain Ba(NO3)2 after it's consumed and produced KNO3 + BaCO3

<u>Step 2: </u>Calculate concentration

To find the concentration of the barium cation we use the following equation:

Concentration = moles of the <u>solute</u> / volumen of the <u>solution</u>

<u />

<u>[Ba2+] </u> = (20 * 10^-3 * 0.2M + 30 * 10^-3 * 0.4M) / ( 20 + 30mL) *10^-3

[Ba2+] = 0.32 M

The concentration of Barium ion in solution is 0.32 M

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