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3 years ago

Explain how metallic bonding supports the properties of metals

Chemistry

1 answer:

Mrrafil [7]3 years ago

6 0

Answer:

Explanation: Because electrons are delocalized around positively charged nuclei, metallic bonding explains many properties of metals. ... Further, because the electrons are free to move away from each other, working a metal doesn't force together like-charged ions, which could fracture a crystal through the strong repulsion.

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Question 1 (1 point)

Setler79 [48]

Answer:

Explanation:

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3 years ago

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A 1.25g sample of dry ice is added to a 765mL flask containing nitrogen gas at a temperature of 25.0°C and a pressure of 725 mmH

erica [24]

Answer : The total pressure in the flask is 1.86 atm.

Explanation :

First we have to calculate the pressure of $CO_2$ gas.

Using ideal gas equation :

$PV=nRT\\\\P_{CO_2}=\frac{w}{M}\frac{RT}{V}$

where,

P = Pressure of $CO_2$ gas = ?

V = Volume of $CO_2$ gas = 765 mL = 0.765 L (1 L = 1000 mL)

n = number of moles

w = mass of $CO_2$ gas = 1.25 g

M = molar mass of $CO_2$ gas = 44 g/mol

R = Gas constant = $0.0821L.atm/mol.K$

T = Temperature of $CO_2$ gas = $25.0^oC=273+25.0=298K$

Putting values in above equation, we get:

$P_{CO_2}=\frac{w}{M}\frac{RT}{V}$

$P_{CO_2}=\frac{1.25g}{44g/mol}\frac{(0.0821L.atm/mol.K)\times 298K}{0.765L}=0.909atm$

Now we have to calculate the total pressure in the flask.

$P_T=P_{N_2}+P_{CO_2}$

Given :

$P_{CO_2}=0.909atm$

$P_{N_2}=725mmHg=\frac{725}{760}=0.954atm$

conversion used : (1 atm = 760 mmHg)

Now put all the given values in the above expression, we get:

$P_T=0.954atm+0.909atm=1.86atm$

Therefore, the total pressure in the flask is 1.86 atm.

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3 years ago

A matrix made of wood is called a n____

VashaNatasha [74]

Answer:

What is the matrix used in lithography? Lithography is a planographic or "flat surface" method that uses a stone slab matrix. Unlike relief and intaglio printing, the matrix used in lithography is completely flat. Serigraphy is also known as "silkscreen painting".

Explanation:

i looked it up

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3 years ago

Gallium is produced by the electrolysis of a solution obtained by dissolving gallium oxide in concentrated NaOH(aq). Calculate t

zlopas [31]

Ga₂O₃ + 2NaOH + 3H₂O = 2Na[Ga(OH)₄]

[Ga(OH)]⁻ + 3e⁻ = Ga + 4OH⁻

n(Ga)=It/(zF)

I=0.200 A
t=40.0 min=2400 s
z=3
F=96485.33 Kl/mol

n(Ga)=0.200*2400/(3*96485.33)=0.00166 =1.66*10⁻³ mol

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3 years ago

What can a drop of mercury be described as?

Studentka2010 [4]

A pure substance and a element

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4 years ago

Explain how metallic bonding supports the properties of metals￼

Explain how metallic bonding supports the properties of metals