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Ede4ka [16]
3 years ago
6

Koii zinda he kya -_+what is ions??? ​

Chemistry
1 answer:
satela [25.4K]3 years ago
3 0

Answer:

An ion is defined as an atom or molecule that has gained or lost one or more of its valence electrons, giving it a net positive or negative electrical charge.

Explanation:

I am here zinda -_+...

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Scrat [10]

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idk

Explanation:

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3 years ago
What is the maximum number of electrons in the following energy leve? n-3<br><br>2<br>32<br>8<br>18​
atroni [7]
The answer is 32!!!!!!!!!!
8 0
4 years ago
A sample of mg(hco3)2 contains 1.8 moles of oxygen atom find the number of carbon atoms in the given sample
Nana76 [90]

Answer:

0.60 moles of atoms of carbon

Explanation:

Step 1: Given data

  • Chemical formula of the compound: Mg(HCO₃)₂
  • Moles of oxygen atoms: 1.8 moles

Step 2: Calculate the number of carbon atoms in the given sample

According to the chemical formula of the compound, the molar ratio of C to O is 2:6, that is, there are 2 moles of atoms of C every 6 moles of atoms of O. The number of moles of atoms of C is:

1.8 mol O × 2 mol C / 6 mol O = 0.60 mol C

4 0
3 years ago
For a covalent bond to be polar, the two atoms that form the bond must have differing atomic weights.
sertanlavr [38]

Answer:

differing electronegativity

Explanation:

the electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

in ionic bond one of the 2 atoms attract the electrons from the another and don't share it so the electronegativity must be different to make the attract tendency different.

so,

first, when we speak about bond we should deal with electronegativity not the number of the neutrons or the melting points

second if the two electonegativities are similar then the electrons will be shared as in covalent bonds. but if they are different one will lose the electrons for the another one

5 0
3 years ago
A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68
Novosadov [1.4K]

Answer:

0.22 atm

Explanation:

The total pressure is the sum of the partial pressures.

P = P₁ + P₂ + P₃

1.25 atm = 0.68 atm + 0.35 atm + P

P = 0.22 atm

5 0
3 years ago
Read 2 more answers
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