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3 years ago

The structure of copper is described as a lattice of positive ions in a 'sea of electrons'.

Chemistry

1 answer:

seropon [69]3 years ago

7 0

Answer:

Explanation:

Metal atoms are held together by metallic bonds. The metallic bonds are composed of a lattice of positive ions in a 'sea of electrons'.

The metal atoms are held together by strong electrostatic attraction between the positive ions and the 'sea of electrons' leading to high melting point of metals including copper.

Similarly, when a metal undergoes stress, the layers of the metal roll over each other but the lattice remains in place. Hence for metals such as Copper, layers of atoms in the lattice can slide over each other thereby making the metal malleable.

Metals oxidize by electron loss. Since Copper is metal, it can also be oxidized to form copper ions by loosing electrons.

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What is the formula for “ammonium sulfite”

8090 [49]

Answer:

(NH₄)₂SO₃

Explanation:

Data Given:

formula for "ammonium sulfite”

Solution

Ammonium sulfite consist of following atoms

Nitrogen = N

Hydrogen = H

Sulfur = S

Oxygen = O

Now we will look for the symbols of ammonium and sulfite

Ammonium = NH₄⁺

ammonium consists one nitrogen and 4 hydrogen atoms. it have overall 1 positive charge.

Sulfite = SO₃²⁻

it have one sulfur and 2 oxygen atoms. the overall charge is 2-.

Now we will write Both ammonium and sulfite ions together. the charges will are the combining power and will be written at the base of the alternate position formula unit.

(NH₄)₂SO₃

So 2 ammonium ions combine with one sulfite ion.

So the formula for “ammonium sulfite” is (NH₄)₂SO₃

7 0

3 years ago

Cual de las opciones siguientes NO es una característica comun de una institución financiera

xeze [42]

Cualquier servicio que no tenga que ver con la transacción financiera no es prestado por las instituciones financieras.

<h3>Instituciones financieras</h3>

Una institución financiera se refiere a cualquier institución que tiene la responsabilidad de realizar transacciones financieras en nombre de individuos u organizaciones.

Las instituciones financieras proporcionan;

Servicios de crédito
Ahorros
Hipoteca
Servicios de transferencia de dinero

Cualquier servicio que no tenga que ver con la transacción financiera no es prestado por las instituciones financieras.

Obtenga más información sobre las instituciones financieras: brainly.com/question/1122044

7 0

2 years ago

Suppose the fluid in the stomach of a man suffering from indigestion can be considered to be 200.ml of a 0.033 m hcl solution. w

Ede4ka [16]

HCl + NaHCO3 = NaCl + H2O + CO2

We have 0.033*0.2 = 0.0066 mol of Hcl

According to reaction we need the same amount of NaHCO3
M(NaHCO3) = 23+1+12+48=84g/mold
m = 0.0066mol * 84g/mol = 0.5544g

8 0

3 years ago

+ c) FeCl3 + NH4OH Fe(OH)3 NHACI

bixtya [17]

The question is incomplete, the complete question is:

Write the net ionic equation for the below chemical reaction:

(c): $FeCl_3+3NH_4OH\rightarrow Fe(OH)_3+3NH_4CI$

Answer: The net ionic equation is $Fe^{3+}(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)$

Explanation:

Net ionic equation is defined as the equations in which spectator ions are not included.

Spectator ions are the ones that are present equally on the reactant and product sides. They do not participate in the reaction.

(c):

The balanced molecular equation is:

$FeCl_3(aq)+3NH_4OH(aq)\rightarrow Fe(OH)_3(s)+3NH_4Cl(aq)$

The complete ionic equation follows:

$Fe^{3+}(aq)+3Cl^-(aq)+3NH_4^+(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)+3NH_4^+(aq)+3Cl^-(aq)$

As ammonium and chloride ions are present on both sides of the reaction. Thus, they are considered spectator ions.

The net ionic equation follows:

$Fe^{3+}(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)$

5 0

3 years ago

Why do the copper square, penny, and the statue of Liberty all soluble in water?

Romashka-Z-Leto [24]

Answer:

It’s because of the green substance on the copper square, pennies and the Statue of Liberty giving those objects the ability to all be soluble in water.

5 0

2 years ago