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ArbitrLikvidat [17]
3 years ago
7

How does crystals apply to a real world problem

Chemistry
1 answer:
svet-max [94.6K]3 years ago
6 0
When you are looking in a jewelry store and you want to know how many carrots are in the diamonds.
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For the reaction2 C4H10 (g) + 13 O2 (g) → 8 CO2 (g) + 10 H2O (g)ΔH° is -125 kJ/mol and ΔS° is +253 J/K ∙ mol. This reaction is _
ivanzaharov [21]

Answer:

C. spontaneous at all temperatures

Explanation:

The spontaneity of  reaction is determined by the sign of the  gibbs free energy.

A negative sign denotes that the reaction is spontaneous, positive sign means the reaction is not spontaneous.

From the question;

ΔS° = +253 J/K

ΔH° = -125 kJ/mol

ΔG = ΔH°  - TΔS°

From the data given, the condition in which we can obtain a negative value of G, is at any value of T.

For any value of T, G would always be a negative value.

This means the correct option is option C.

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3 years ago
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JOE BIDEN GOT ELECTED

Explanation:

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hat is the pH of a solution with a hydroxide ion concentration of 10–6M? A. pH = 12 B. pH = 8 C. pH = 6 D. pH = 7
WARRIOR [948]
C=10⁻⁶ mol/L

pH=14-pOH

pOH=-lg[OH⁻]

pH=14+lg10⁻⁶=14-6=8

B. pH = 8

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3 years ago
Why are both absolute dating and relative dating used to determine the age of fossils?
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<span>they assign a numerical date to each rock layer studied.</span>
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Does anybody know how to do this if so please help !
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Explanation:

easier formula

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