3 years ago

What property of copper makes it ideal to create thin sheets of copper?

1 answer:

8 0

Copper is a soft, ductile, and malleable metal that bends and stretches easily without breaking. Copper is a versatile metal for construction and manufacturing because of this.

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Given: N2 + 3Cl2 → 2NCl3, ΔH = 464 kJ/mol Use the given bond energies and the periodic table to calculate the energy change in t

guapka [62]

The given chemical reaction is:

$N_{2}+3Cl_{2}-->2NCl_{3}$

Δ $H^{0}_{reaction}=$ ∑BE(reactants)-∑BE(products)

= {(941 kJ/mol) + (3 * 242 kJ/mol)} -[{2*(3*200 kJ/mol)}]

= 467 kJ/mol

Calculating the change in heat when 85.3 g chlorine reacts in the above reaction:

Moles of chlorine = $85.3 g Cl_{2}* \frac{1 mol Cl_{2}} {70.91 g Cl_{2} }$

= 1.20 mol $Cl_{2}$

Heat change when 1.20 mol chlorine reacts

= $1.20 mol * \frac{467kJ}{mol} =560.4 kJ$

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3 years ago

Lithium and nitrogen react to produce lithium nitride:

garri49 [273]

Answer:

B : 0.133 M

Explanation:

moles Li3N3 = 0.4 mol Li x (2 moles Li3N/6 moles Li) = 0.133 M

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3 years ago

What is the hydrogen ion concentration in a solution with a pH of 8.0??

finlep [7]

- log [H+] = 8
log [H+] = -8
10^(log [H+]) = 10^-8
[H+] = 1x10^-8 M

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4 years ago

The atomic number of an atom is equal to the number of..

frez [133]

The answer is (E). protons.

The atomic number of an atom is equal to the number of protons in the nucleus.

I hope this helped.

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3 years ago

A phase diagram assumes ______ is kept constant. temperature volume pressure density

algol [13]

pressure......................................

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3 years ago

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