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2 years ago

Describe what is ionic bonding and how it happens.

Chemistry

2 answers:

Tems11 [23]2 years ago

5 0

Answer:

Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

Explanation:

xz_007 [3.2K]2 years ago

5 0

Answer:

Explanation:

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Calculate the equilibrium number of vacancies per cubic meter for copper at 1000K. The energy for vacancy formation is 0.9eV/ato

nexus9112 [7]

Answer:

Therefore the equilibrium number of vacancies per unit cubic meter =2.34×10²⁴ vacancies/ mole

Explanation:

The equilibrium number of of vacancies is denoted by $N_v$ .

It is depends on

total no. of atomic number(N)
energy required for vacancy
Boltzmann's constant (k)= 8.62×10⁻⁵ev K⁻¹
temperature (T).

$N_v=Ne^{-\frac{Q_v}{kT} }$

To find equilibrium number of of vacancies we have find N.

$N=\frac{N_A\ \rho}{A_{cu}}$

Here ρ= 8.45 g/cm³ =8.45 ×10⁶m³

$N_A$ = Avogadro Number = 6.023×10²³

$A_{Cu}$ = 63.5 g/mole

$N=\frac{6.023\times 10^{23}\times 8.45\times 10^{6}}{63.5}$

$=8.01\times 10^{28$ g/mole

Here $Q_v$ =0.9 ev/atom , T= 1000k

Therefore the equilibrium number of vacancies per unit cubic meter,

$N_v=( 8.01\times 10^{28}) e^{-(\frac{0.9}{8.62\times10^{-5}\times 1000})$

=2.34×10²⁴ vacancies/ mole

3 0

2 years ago

A ______ solution contains more dissolved solute than a saturated solution at the same temperature

NeTakaya

Answer:

i believe the answer is supersaturated

Explanation:

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2 years ago

What is likely to happen if we can't control our experiment properly? A. Our hypothesis will have to be changed. B. We will need

REY [17]

The answer to your question
is b

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2 years ago

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Which is not a reason why mass of an atom is expressed in atomic mass units rather than in grams?

Tasya [4]

What are your answer choices? Scientists express the weight in AMU’s so that they can easily think about the weight of the atom. If it is expressed in grams, they’re constantly dealing with a weight that’s around 10^-24 grams, which is hard to deal with.

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2 years ago

The atomic number and mass number do not change during this type of radioactive decay.

lutik1710 [3]

In gamma decay, no change in proton number occurs, so the atom does not become a different element

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3 years ago