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bezimeni [28]
3 years ago
9

How do two elements change properties when they form a compound

Chemistry
1 answer:
S_A_V [24]3 years ago
5 0
In most cases, when two elements form a compound, the new compound has a set of chemical properties that are entirely different from its reactants. However, in the case of diatomic compounds, such as O2, then yes, the compound retains the properties of its elemental parts.
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Chemical change? Need more context.
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How do you explain the relatively high conductivity of tap water compared to a low or zero conductivity for distilled water?
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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.

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From the question;

ΔS° = +253 J/K

ΔH° = -125 kJ/mol

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3 0
3 years ago
If half of the moon is always illuminated why does its appearance from earth change?
irina [24]

Answer:

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A gas occupies 14.3 liters at a pressure of 45.0 mm Hg. What is the volume when the pressure is increased to
Simora [160]

Answer:

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