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3 years ago

What is the electron configuration of a chlorine ion in a compound of BeCl2

2 answers:

8 0

The electronic configuration of a chloride ion in a compound of BeCl2 is

2.8.8

This is because chlorine atom which electronic configuration 2.8.7 gain one electron form Be to form chloride ion with 2.8.8 electronic configuration. BeCl2 is an ionic bond which is formed by a metal and a non metal.metal (Be)loses electron and become positively charged while non metal (Cl2) gain electron and become negative charged.

Oduvanchick [21]3 years ago

3 0

Answer:

The electron configuration of a chlorine ion in a compound of BeCl2 is

1s²2s²2p⁶3s²3p⁶

Explanation:

Beryllium chloride (BeCl2) is an ionic compound where Be is an alkaline earth metal (group 2) and Cl is a halogen atom (group 17).

Alkaline earth metals have a charge of +2 while halogens exhibit a -1 charge. Hence in BeCl2 each Be atom exists as Be2+ cation and Cl exists as Cl- anion.

The atomic number of Cl = 17. The valence electron configuration for the neutral atom is:

Cl(Z=17) = 1s²2s²2p⁶3s²3p⁵

The chloride ion has an addition electron, therefore

Cl⁻(Z = 17+1 = 18) = 1s²2s²2p⁶3s²3p⁶

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Passing an electric current through a sample of water (H2O) can cause the water to decompose into hydrogen gas (H2) and oxygen g

Andreas93 [3]

2H2O --> 2H2 + O2
The mole H2O:mole O2 ratio is 2:1
Now determine how many moles of O2 are in 50g: 50g × 1mol/32g = 1.56 moles O2
Since 1 mole of O2 was produced for every 2 moles of H2O, we need 2×O2moles = H2O moles
2×1.56 = 3.13 moles H2O
Finally, convert moles to grams for H2O:
3.13moles × 18g/mol = 56.28 g H2O
D) 56.28

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ludmilkaskok [199]

Answer:

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3 years ago

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cestrela7 [59]

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3 years ago

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3 years ago

Read 2 more answers

[1] b) In a local election there were 8000 registered voters. Of these 3200 voted. What was the percentage that voted? [1] <

Alexandra [31]

Answer:

40% of registered voters voted

Explanation:

3200 out of 8000,

or :

3200 / 8000

= 0.4

0.4 x 100 = 40

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2 years ago