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3 years ago

If an iron atom loses two electrons, the name of the iron ion is

2 answers:

5 0

If iron atom looses 3 electrons, it forms Fe+3 (ferric) and if iron looses 2 electrons, it forms Fe+2(ferrous). Hope this helps!

HACTEHA [7]3 years ago

4 0

Explanation:

Iron is a transition element and its atomic number is 26 with electronic distribution $[Ar]4s^{2}3d^{6}$ .

So, 4s shell being larger in size as compared to 3d shell so, when two electrons are lost then they will be lost from 4s shell first.

Hence, electronic distribution will then become $[Ar]4s^{0}3d^{6}$ .

As a result, $Fe^{2+}$ will be formed and name of this ions is ferrous ions.

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State the number of neutrons in an atom of Ne-20 and the number of neutrons in an atom of Ne-22. choose two answers * 1 point Ne

saveliy_v [14]

Answer:

Ne 20: 10

and

Ne 22: 12

Explanation:

Ne-20:

N = A - Z = 20 - 10 = 10 neutrons

Ne-22:

N = A - Z = 22 - 10 = 12 neutrons

N: number of neutrons

A: mass number

Z: atomic number

8 0

3 years ago

A sample of Ca(OH)2 is considered to be an Arrhenius base because it dissolves in water to yield

postnew [5]

The answer is C. Arrhenius bases increase the concentration of OH- in solution.

8 0

2 years ago

Read 2 more answers

When methane (CH4) gas is burned in the presence of oxygen, the following chemical reaction occurs.

liraira [26]

Idk try asking Crawford

4 0

3 years ago

An electrochemical cell has the following standard cell notation.

Alona [7]

Explanation:

The given following standard cell notation.

Mg(s) | Mg^2+ (aq) || Aq^+(aq) | Aq(s)

Oxidation:

$Mg(s)\rightarrow Mg^{2+}+2e^-$ ....(1)

Magnesium metal by loosing 2 electrons is getting converted into magnesium cation. Hence, getting oxidized

Reduction:

$Ag^+(aq)+1e^-\rightarrow Ag(s)$ ...(2)

Silver ion by gaining 1 electrons is getting converted into silver metal. Hence, getting reduced.

Overall redox reaction: (1)+2 × (2)

$Mg(s)+2Ag^+(aq)\rightarrow Mg^{2+}+2Ag(s)$

4 0

3 years ago

Identify the characteristics of a good recrystallization solvent. Select one or more: Dissolves a chemical sample well at high t

borishaifa [10]

Answer:

Dissolves a chemical sample well at high temperatures.

Does not dissolve a chemical sample well at low temperatures.

Explanation:

Recrystallization involves the dissolution of the solute in a solvent at high temperature. As the solution cools, it becomes saturated and the solute crystallizes out of the solution.

A good recrystallization solvent must only dissolve the solute at high temperature and must not dissolve it at low temperature. Hence, these are the two conditions required for any good recrystallization solvent.

3 0

3 years ago