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ladessa [460]
2 years ago
7

Question 15

Chemistry
1 answer:
Artyom0805 [142]2 years ago
6 0

Answer:

b. 600 k

hope it help

.

.

thank you so much.

tysm

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Find ∆G for a cell whose potential is +0.24 V with 4 moles of electrons exchanged.
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We need to use the following formula
ΔG= -nF E_{cell}

E_{cell}= 0.24V
n= 4 moles
F= constant= 96500C/mol

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3 years ago
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A material has a volume of 63.0 cm3 and a mass of 28 grams.  What is the density of the material in g/cm3 to the correct number
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Answer:

0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).

Explanation:

  • Knowing that:

<em>d = m/V,</em>

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V is the volume of the material (V = 63.0 cm³).

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2 years ago
Which particles may be gained lost or shared by an atom when it forms a chemical bond?
Maru [420]

Answer:

B.

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electrons can be lost by one particle, and gained by another particle

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Answer is: an instant ice pack becoming cold, splitting a gas molecule and baking bread.

<span>Endothermic reaction is chemical reaction that absorbs more energy than it releases.
</span>In ice pack, <span>reaction absorbs heat from the surroundings (endothermic reaction), lowering the surrounding temperature.
For splitting molecule and baking bread we must add energy to break bonds between atoms.</span>
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How does the structure of covalent bonds affects their structure.
Black_prince [1.1K]
Covalent bond is a type of chemical bond which is formed as a result of sharing of electron pairs among the elements that are involved. The structure of the covalent bond is affected by the electronegativity of the elements involved. The molecules joined by covalent bond range in size from very small to very large polymers. There are different types of structures for covalent substances, these include: macromolecular substances, molecular substances and giant covalent structures. Strong bonds hold individual molecules together but there are negligible forces of attraction among them.
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