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sladkih [1.3K]
3 years ago
10

An example of a quick chemical change is

Chemistry
2 answers:
eimsori [14]3 years ago
8 0
Answer: Burning, cooking, rusting, rotting
Svetach [21]3 years ago
5 0

Answer:

cooking, rusting, ect.

Explanation:

Chemical changes occur when a substance combines with another to form a new substance

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Over [174]
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3 years ago
Write the net cell equation for this electrochemical cell. phases are optional. do not include the concentrations. sn(s)||sn2+(a
Alchen [17]
E^{o}cell =  E^{o} (Ag+/Ag) -  E^{o}( Sn2+/Sn)
where, E^{o} (Ag+/Ag) = std. reduction potential of Ag+ = 0.7994 v
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Thus, E^{o}cell = 0.7994v - (-0.14v) = 0.9394 v

Now, ΔG^{o} = -nFE^{0},
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F = Faraday's constant = 96500 C
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Now, using Nernst's Equation we have,
[tex]E_{cell} = 0.9394 - \frac{2.303X298}{2X96500}log \frac{0.0115}{ 3.5^{2} }
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3 0
3 years ago
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Exit Calcium has an atomic number of 20. How many electrons of a calcium atom are involved in chemical bonding? A. 2 B. 8 C. 16
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THE COMPLETE QUESTION IS:

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Answer:

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c. Co(H2O)6³+ + H2O <==>CoH2O5(OH)²+ + H3O+

(Therefore Co+ is a weak acid since hydronium ion is formed.)

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