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3 years ago

How do metals form chemical bonds with other metals?

Chemistry

2 answers:

Free_Kalibri [48]3 years ago

5 0

Answer:<em>Ionic bonds form due to the transfer of an electron from one atom to another. Covalent bonds involve the sharing of electrons between two atoms. Metallic bonds are formed by the attraction between metal ions and delocalized, or "free" electrons. Created by Sal Khan.</em>

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Explanation:

gogolik [260]3 years ago

4 0

Answer:

Metallic bonding

Explanation:

Metals have low ionization energies. Therefore, their valence electrons are easily delocalized (attracted to the neighbouring metal atoms). These delocalized electrons are then not associated with a specific metal atom. Since the electrons are “free”, the metal atoms have become cations, and the electrons are free to move throughout the whole crystalline structure.

We say that a metal consists of an array of cations immersed in a sea of electrons .

The electrons act as a “glue” holding the cations together.

Metallic bonds are the attractive forces between the metal cations and the sea of electrons.

In an NaK alloy, for example, the Na and K atoms contribute their valence electrons to the "sea". The atoms aren’t bonded to each other, but they are held in place by the metallic bonding.

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sammy [17]

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3 years ago

9.87X1024 atoms (NH4)3 PO4= how many moles

mote1985 [20]

Answer:

16.4moles

Explanation:

From Avogadro's hypothesis, 1mole of any substance contains 6.02x10^23 atoms.

This clearly indicates that 1mole of (NH4)3PO4 also contains 6.02x10^23 atoms.

Now, if 1mole of (NH4)3PO4 contains 6.02x10^23 atoms,

Then Xmol of (NH4)3PO4 will contain 9.87X10^24 atoms i.e

Xmol of (NH4)3PO4 = 9.87X10^24/6.02x10^23 = 16.4moles

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3 years ago

To what volume should you dilute 134 mL of an 8.00 M CuCl2 solution so that 48.0 mL of the diluted solution contains 5.89 g CuCl

Tom [10]

Answer:

Explanation:

Number of moles of CuCl2 initially present = volume * molar concentration

= 0.134 * 8

= 1.072 mol.

Molar mass of CuCl2 = 63.5 + (2*35.5)

= 134.5 g/mol

Mass of CuCl2 = molar mass * number of moles

= 134.5 * 1.072

= 144.184 g

Mass of CuCl2 in 48 ml = 5.89 g in 48 ml

Volume = 5.89 * (48/144.184)

= 1.96 ml.

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3 years ago

What contribution did Niels Bohr make to atomic theory?

Bumek [7]

Answer:

Explanation

His greatest contribution is the atomic model

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3 years ago

Which statement BEST describes the policies of the Freedmen's Bureau? Question 1 options: The Freedmen's Bureau wanted to encour

olga2289 [7]

<h2>ANSWER:</h2>

The Freedman's Bureau wanted to help newly freed slaves participate in American society.

<h2>EXPLANATION:</h2>

The Freedmen's Bureau, formally known as the Bureau of Refugees, Freedmen and Abandoned Lands, was set up in 1865 by Congress to help a large number of previous dark slaves and poor whites in the South in the outcome of the Civil War. The Freedmen's Bureau given nourishment, lodging, and therapeutic guide built up schools and offered lawful help. It additionally endeavored to settle previous slaves ashore appropriated or surrendered amid the war. Be that as it may, the department was kept from completely doing its projects because of a lack of assets and faculty, alongside the legislative issues of race and Reconstruction.

5 0

3 years ago

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